look up any word, like bootylicious:
1. Rab
noun/adjective: random ass bitch
Did you see those rabs at the party, who the hell where they?
2. RAB
Random Ass Boner.
Matt was on the cherry picker and Nick smacked him in the RAB.
3. rab
Acting in a regretful manner, or to be full of regret following an action.

Comes from the phrase, 'rab-regret'.
Look at that feeble man doing the walk of shame. Bet he's rab-regretting that.
4. rab
albanian word for marijuana/ganja formed by inversing the word bar which means herb.
Hajde cuna do pijm rab se e kam marr te mire fare sot.

Po me daku hajde e fikim aty poshte pallatit
5. rab
Rab is short for "rude-ass bitch." A less-gendered definition can be "rude ass bobo."
Stanley, stop being such a rab!

Nobody likes a rabby patty.

Yep, that's me--rabalicious!
6. rab
Real
Ass
Bitch
you're such a rab for telling that bitch off.
7. RAB
Resident Assistant Bitch
Man, you guys are so lucky to have RAB. Our RA keeps busting our balls over the stupidest shit
rss and gcal