Pump and Chunk
A Pump and Chunk is when a male is puking, and receives a hand job at the same time from a female. The male will then alternate from puking in the toilet, and making out with the female, the entire time receiving a hand job.
The other night, I received a pump and chunk from this drunk chick.
pump her chunk
Used to instruct a male associate to copulate with his female companion.
"Fuck it if her parents are home; just pump her chunk!"
Double Pump Chunk
It is used as a term for premature ejaculation. The man enters twice then releases his fruits.
Did you her about what Joe did?
What?
He did a double pump chunk!
What?
He did a double pump chunk!