When your friend hops on your back buck naked, then you bend over and push their arm (the throttle) forward. Once this happens they let out a solid and aggressive stream of diarrhea and become your mud thruster.
Holy shit, Dave just strapped on his mud thruster, he's primed for takeoff!
by dberothehero May 16, 2023
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Guy wears pink morph suit with a hole where your dick comes out. While thrusting analy into the girl he swings his arms back and forth as hard and fast as he can.
Gee wilickers Batman they are doing the pink thruster
by Elieatsbooty98 January 7, 2018
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When a guy/ trans fucks your mouth.
Man he was a thruster when he fucked my mouth.
by Ihateheadpushes November 16, 2019
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