beer mathematics
Used to define a person's inability to count (particularly beers) when intoxicated.
Guy 1: How many beers have I got?
Guy 2: You've got 2. You drunk 2
Guy 1: But I had 4
Guy 2: I know. you drank 2, and you've got 2 left
Guy 1: So there's 2 empty ones left, and 2 unempty ones?
Guy 2: What the hell is unempty?
Guy 3: XD I fucking love beer mathematics
Guy 2: You've got 2. You drunk 2
Guy 1: But I had 4
Guy 2: I know. you drank 2, and you've got 2 left
Guy 1: So there's 2 empty ones left, and 2 unempty ones?
Guy 2: What the hell is unempty?
Guy 3: XD I fucking love beer mathematics