Top definition
It is when you poop out cum after receiving anal sex, bareback, from another guy. The only thing coming out of your bung hole is cum.
Man, did you see the toilet after Doug was done using it ? He must of got laid because it was full of guyarrhea.
by hawke4me November 22, 2016
Get the mug
Get a Guyarrhea mug for your boyfriend Paul.