2 definitions by Johnny Bad

To hump someone as hard as you possibly can.
Mate, I thunder pumped that girl all night long!
by Johnny Bad May 25, 2008
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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)
by Johnny Bad May 25, 2008
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