The act of eccesively drinking liquids, while consuming enough spicy food to give oneself the runs.

Following this procedure you would defacate all over a counterpart giving them a hot, liquid portugese shower.
Our hot water tank broke so Sean performed a Portugese Shower Head on me.
by TheGhostpooper January 19, 2019
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This shit right here is when you make the saix in a bath tub, or pool.Request to be on the bottom and while your lover is hittin' that shit you leave leave a heapin' pile of doo-doo in the basin of the tub.
While Mike and Zach were bathing Mike felt a sexual urge, Zach did not, but Mike forced him to perform anyway.To reap sweet revenge Zach let his bowls loose and produced a most fabulous Portugese Man Of War in Mike's bath tub
by Jizack February 18, 2005
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When a person travels to Europe and spends too much time in the hotel room with his/hers sports team.
While in Europe Johnny indulged in many Portugese Hamburgers!
by Pacadooman April 09, 2013
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