Top Definition
1. The art of fucking one's own mother while getting nailed up the ass by your father's grandpa usually the prospecting duckling is being performed.
"Kyle is one sick dude, doing a Mologolongathingbo at his mom's wedding"
"Yea I know what a douche"
by John Von Duchenheimer November 28, 2006
6 Words related to Mologolongathingbo

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