I'm Gonna Cum On You - A big mouthful of nonsense you yell when you're too excited

A big mouthful of nonsense you yell when you're too excited or too wasted to think straight.

I'm gonna cum on you, I just won a bet with my dad.

I'm gonna cum on you, I just drank 12 sodas.

I'm gonna cum on you, I just got a 100 on my math test.