Gag-Invitation
A Gag-Invitation is when a girl is giving head and she gags so hard her mouth stretches like a taco shell, and you get to stuff your nuts in there like it's a snack.
She gagged so loud I thought she was gonna vomit my whole face.
He stuck his balls in her mouth and said it was like eating a grilled cheese with extra cheese.
She opened her mouth wide enough to fit a whole pizza in there.