A reference when a person loves pizza so much that he\she can actually live their life eating it
Person 1: Man, how many pizzas did you eat this week?
Person 2: A Lot, but i still don't care because Pizza Is Life!
is the slang use of "Yes" but more exciting answered, used mostly between teens; the spelling of the word can be having one or multiple "S" at the end.
Person 1 : Are You Coming to the party?
Person 2: Jass Girl.