Top Definition
Sticking your head in the bog (toilet) and flushing the chain. Apparently also known as a 'swirlie' in other parts of the world.
Occurs mainly in school and administered by bullies.
by Footle July 15, 2005
Old-school definition:

When dumping out, a turd hits the water at high speed, usually because of the gas build up behind it increasing velocity. This causes the toilet water to splash, sending toilet water up your butt hole. A very uncomfortable mental and physical reaction because you realize that bog water has shot up your ass.
OMG, I took a power shit and got bog-washed. Now I have bog water up my ass. I'm glad I was at home, and not on some some nasty 7-11 toilet. Need to force a shit to get it out of there!
by The OriginalPsychoMike June 14, 2016
A sexual act whereby the male/female decides to unload both the solid and liquid forms of waste from themselves onto thier partner, at the same time, thus giving the same effect as a traditional "Bog-Wash".
Oliver: You'd have sex with that beast of a girl Claire?!, i'd rather take a bog-washin' off Vanessa Feltz!
by J May 03, 2005
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