1. banging her in the ass with a frozen turd.

2. when a partner is constipated, using your cock to force feces to spill due to the vacuum effect of penetration.
1. "hey man, nice chocolate plunger"

2. guy 1: "hey dude, what did you and Becky do last night?"
guy 2: "went out to Arby's, i chocolate plunged her in the bathroom."
by jordanepstein June 30, 2008
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