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To completely mess something up.

To Mayo something
You just Mayo'd that?
by MMCG2010 July 23, 2018
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The act in which one sucks sloppily and loudly on another's floppy, non-erect penis and finishes before the receiver finishes.
Person 1: "Hey what did you get last night?"

Person 2: "It was going well but then she mayod me and fell asleep"
by Bois y lads July 27, 2017
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