What is a Qover/Quover/Kover - This is in the Rekieta saga, and I see it being thrown around all the time.

[Outer Space Traveller]

No idea what it means, I would appreciate answers, please.
Bonus question, if someone has Null's reaction to Nick's drunken rant to Potentially Criminal/Sean where he goes "THEY SAY I BEAT MY KEEDZ SEEEEEAAAANNN", I would appreciate. I tried using the search function to no success.

 

[Sparkletor 2.0]

It's that thing Robin Hood wears on his back to keep his arrows in.