short for: beer cavity
(n) a cavity in one's tooth as a result of too much beer drinking and not enough tooth brushing.
Molly: Hey Kara, wanna kick it after school?
Kara: I would, but I have to go to the dentist to get my beer cav filled! I'm definitely bringing a tooth brush to our next party!
short for: beer cavity.
a cavity in your tooth resulting from drinking too much beer
kara had to go to the dentist to take care of her beer cav because she forgot to bring her toothbrush to the party last weekend