When you are eating a girl out who doesn't have a shaved pussy, and is in fact as hairy as a llama.
Guy 1: Man I ate my girlfriend out for the first time, she is hairy as a llama down there!
Guy 2: So you did a nomma llama?
Guy 3: I think it spit back at me
When you eat your girls pussy out to the point she convulses.
Guy 1: "Hey bro I just nomma llama'd my girlfriend in the bathroom!"
Guy 2: "Yeah the whole school heard her screaming. Stuff a sock in her mouth next time"