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A sexual situation in which the male holds onto a woman's ears and ejaculates into her hair while emitting a sound similar to the moan of a rabbit. Can be used as a verb, noun, or expletive.
Kevin bunnygrunted his girlfriend, taking care to draw out his rabbit moan as long as possible.

Dylan finished the bunnygrunt before going out for some tacos.

"What the bunnygrunt was that?"
by dcole May 07, 2010
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