It is the act of dude pissing btwn a chicks legs while she is taking a dump on the toilet. Then when he is done whizzing she proceeds to give him a bj...while still taking a dump.
Oh yeah that girl I meet last night was a FREAK. She wanted to go in the bathroom and give me a guappo treskow.
by KevinDaKing August 27, 2007
Get the Guappo Treskowmug.