Top definition
when a guy is nailing a girl from behind, and as he's about to blow his load, he punches the girl on the back of the head, causeing her to 'BUCKAROO' and creates great orgasms all round.
Hey Brad, I nailed that chick from the bar last night. We had some amazing sex, I managed to slip in the mad donkey. I don't think she was expecting that.
by cheesemuncher96 April 12, 2017
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