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The sexual practice in which you convince your girlfriend/wife/partner/whore to gargle on your baby gravy, then unexpectedly you uppercut her in the sternum screaming "SURPRISE" and avoiding the consequent rainbow of liquids.
Where's Katie?

In hospital with a punctured lung. Tyrone went a bit far when he Gargle Gargle Surprised her.
by UrbanBob June 07, 2010
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