Top Definition
The act of punching someone who has had too much to drink but will not admit it in order to force vomiting and save his life.
Dude! The big guy just DeMarco'd Mao Xao Ming in the bathroom, he's puking all over the place!

Yo bro, if you don't get straight I'm going to have to DeMarco you.
by frat rat October 19, 2007
1 more definition
The act of putting a cigarette between the gap of your two front teeth
yo give me a cig I'll DeMarco it
by demarco December 28, 2014

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