When you cover/drown your balls in animal fat, then shove them into one of your friends/best friends mum's mouth.
Joe: 'Guessing what Im doing at the weekend?'
Garry: 'What?'
Joe: 'Donkey balling your muma!'
Garry: 'Huh, thats funny, because I donkey ball'd your muma just week!'
by TerrorFromAbove June 24, 2011
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