Top Definition
Standing over your opponent's bed while you shove cookies into your mouth and chew voraciously, spreading crumbs throughout said opponent's sheets.
I hated his online persona so hard that I went over to his apartment and cookie monstered him hard.
by DJ Starfleet July 16, 2011
The act of taking a thizz by chewing it and smiling.
I just popped my thizz but I can't believe that crazy fool Beats just cookie-monstered his!
by sickbeats May 16, 2007

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