guy number 1: so what are you up to tonight?  guy number 2: i'm going to watch this porn where this girl does an airtight skier
when a girl has penises in her vagina, anus, mouth, and one in each hand
"guy number 1: so what are you up to tonight?  guy number 2: i'm going to watch this porn where this girl does an airtight skier" What is the definition of "airtight skier"?