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
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" What is the definition of "beer cav"?