Timmy Two Pumps

To be associated with the word "timmy two pumps" is not the most flattering of things. Simply put, it means you can't hold your load. Even simpler put - it means you're a premature ejaculator.

Dude1: bro! Why aren't you in the other room with that girl anymore?

Dude2: Man, I took off my pants and splooged everywhere. It was over before it started. She then proceeded to call me Timmy Two Pumps.

Dude1: godamnit, dude.