Definitions by Johnny Bad

Thunder Pump 

To hump someone as hard as you possibly can.

Mate, I thunder pumped that girl all night long!

Thunder Pump by Johnny Bad May 25, 2008

Fallopian Pump 

To go so deep in a girls muff you poke the fallopian. Often associated with a black man’s huge nob entering a girl’s cock wallet.

Mate, I took that girl home last night and gave her the old FP (Fallopian Pump)

Fallopian Pump by Johnny Bad May 25, 2008