Top Definition
Acronym for Pressurized Hydro-Defecation Attack. When you go to shit, usually after a night of drinking tequila, and a pressurized stream of water comes out of your ass lasting at least 3 seconds. Similar to asspiss.
I took 7 shots of Patron and had a PHDA the next morning.
by BigNig J February 10, 2008
6 Words related to PHDA

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