Got Pi or Not?

The mathematical equivalent of “Got Milk or Not?” A question that is normally asked by Ah Beng’s and Ah Lian’s—Singapore’s and Malaysia’s young men and women, whose attires and antisocial behaviors make them look like some odds in a sea of evens—to check whether some math courses are worth attending, or some dear math titles are worth buying, especially if they contain an obscene number of challenging questions with few solutions.

when you servely pwn someone or just for comedic relief

usually along with a you got pied picture