UKC

Should I call them carabiners, karabiners, krabs or clips? 

Biners

Snapgates and screwgates

Crabs

Krabs if British and oldskool (why the "k" not "c" I don't know), biners if you're American or a coolkid

Biners gives the nice phrase for carabiners you found (or some reason they're cr*p) and don't mind abandoning if needed, as "bin biners"

Biners and "leaver biners" 

Carabiners, karabiners, krabs or 'biners, but not clips.

Also if you want to be specific, snapgates, wiregates, screwgates, twistlocks, "lockers" generally.

Edit to add: 
And yes!  The old ones that you're happy to abseil or lower off but also relatively happy to leave behind: "leaver biners".

Snappers and screwies 

Snaplinks. 😀. Pretty good descriptive term too. 

With a k is the original German spelling that seems to be falling out of use in English. "Biner" was the standard American term but is disapproved of over there these days because it sounds similar to a racial slur for Mexicans.

God no.  Really needs stamping out.

Almost as bad as "lockers".

I'm not super keen on "lockers" but it feels less odd than Tom R's "screwies". Sorry Tom!

There's a lot to be said for using the simplest and most distinctive names for climbing gear, especially when communicating in a strong wind. E.g. Krabs, nuts, wires, cams, rope...

Yes, screwies is silly.

Krabs, subdivided into snaplinks and screwgates is all that is needed, or indeed tolerable.

Do you still downrope to descend from climbs, or have to succumbed to the european fripperies of rappelling and abseiling? 

+1 for ‘biners

Actually roping down is the correct terminology.

Krabs, so you don't have any nasty mixups when you ask your mate to bring some.

No, to my shame. My late uncle, who took me to the Alps for the first time as a teenager did however insist on "roping down" and would have none of the foreign nonsense (he also read aloud apt passages from Whymper or Mummery the night before each daring ascent). 

Spiffing!

Capital!

Reminds me of this:

but not as bad as "batters", nothing could be as bad as that ....

This is  what my dad called the old (ex army?) krab he'd bought in the early 50s.

I can well believe it. But what are they?

If you mean the stuff people carry round their waists, I reckon it's spelt "carbs".

But you can get crabs down there as well.

It is, after all, an accurate translation of "abseilen"

I’m at the locker, dirt me dude.……

…. Now awaiting a Durran explosion !

Sounds like something a toproper would say. O tempora, o mores! 

batsmen and batswomen

I think Third Man should have become Third Person.

"Clippy Things" is the normal climbers' term. 

Actually I use screwies for screw gates and -dare I say it, quickies for QuickDraws . Going to stick with carabiners for now.  Calling them krabs feels like when people say San Fran or ‘Cisco when they mean San Francisco, it lessens their worth somewhat.  Laterz.

Recreational connectors  has a nice ring to it 

what, like doggers?

Putting the clips in- my go to term for equipping a sport route with quickdraws.

The fact that I use all of krabs, biners, lockers, and c/karabiners interchangeably (interestingly I think it's one of the very few words I say much more than I spell) is probably, in hindsight, part of why I so confuse non-climbing or non-English friends any time I ask them to pass me a piece of gear... 

(I would say 'bail out biner', but I may have picked that up Canada. I have never heard leaver.)

Also add the delightful 'widget', now that my memory's turned to mush, and more importantly, refusing to specify exactly what you're talking about is a wonderful way to bring a little dose of chaos to those who know and love you.

But my favourite climbing term will always be, 'that's the badger' - as in encouragement from a belayer (not a novel piece of equipment). I hope to continue to pass this on to future generations. 

Was that the trip Sir Hugeley Havering put Binder in charge? Good show old chap!

Totally fine, but strangely I don't think "the clips" in this case are the 'biners, nor even the quickdraws exactly.  I think "the clip" is what would be "the gear" on a trad route, the whole ensemble of the thing that you clip.

The current consensus amongst us young-uns seems to be:

k/crabs or biners: equally used terms for any carabiner.

locker: any type of locking karabiner.

draws or clips: equally used terms for quickdraws - but in slightly different ways. E.g. "I'll bring my draws" vs. "I'll leave the clips in". Draws = referring to the actual hardware, clips = referring to the thing you physically clip into. Yes they're the same thing, but in different circumstances.

The specific type (snapgate, screwgate, HMS, auto-locker etc.): to refer to said specific type without ambiguity.

And yes, both carabiner and karabiner seem to be both used equally regularly!

Crabs generally, screw for a screwgate