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when a woman with an abnormally fat ass squats down on a man's face and proceeds to violently shakes her ass with extreme force causing it to rumble, bruising may occur; if the female decides to defecate on the male, then it is referred to as a 'barnyard rumble suprise'.
"I just started to fall asleep but before i knew it, maria had hopped on my face and barnyard rumbled me so hard my nose turned purple."

doctor: it doesnt look so good, your son isnt going to make it

mother: no! what happened!?

doctor: he recieved massive trauma to the face and forehead region.... he was... barnyard rumbled...
by dilf king May 01, 2011
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