two whole beers that night is a term used by men to tell their ultra light weight friend that he was drunk and disorderly or black out. the term is often used when the two beer query pisses him self after a night of drinking.
Jason: yo Lando, you passed out on the couch and pissed your self last night
Lando: I know shut up!
Chris: Lando to your credit you did have like two whole beers that night.
Lando: shut up!