Onomatopoeic: The work 'Gwuark' refers to the sound of someone choking on their own saliva, whilst providing oral sex to a male.
Context 1: "Listen to the sound of that girl gwuarking when my penis penatrates her speech box."

Context 2: "My girlfriend came over last night and gwuarked the shit outta my cock and loved it!"
by Gwuarkatron December 18, 2009
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