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The cum, semen, and other mysterious liquids dripping out of the female's anus after anal sex.
Dude, After We were done messing around she had serious backwater.

Oh my gosh Jared!! You cum way tooo much!!! Last night, I had sooo much Portland Backwater when you were done.
by Miceazy772 December 17, 2009

Words related to Portland Backwater

anal sex bootylicious disgusting gross michael unbelievable