Top Definition
When a girl fucks you for free, because she likes to give it away. Like free legal representation when the attorney approves the cause.
"Dude, I can't believe I boned her. She's never been down before."

"Sounds like she's down for a pro-bonor."
#mercy sex #pussy from heaven #luck #pussy-luck #act-of-god
by Steed Dropout August 31, 2012
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