A play on 'beggars can't be choosers' – you get what you are given and don't complain, you can’t avoid them, they are your neighbours. Even though the very sight of them fills you with despair because of their passive aggressive notes and incessant complaints about noise, the bins etc.
Chugging or otherwise rapidly consuming a liquid in an impressive show of skill and dominance. The more faster and more casually you can choober something, the cooler it is.
"I almost choked while I was choobering my Kool-Aid. I thought I was going to drown."