When your friend is so hammered that when he is peeing outside and you are standing behind him waiting for him he turns around for a split second and pees on your.
Jack: Dude why does your leg have piss on it?
John: George thought it would be funny to do a yellow flash on my leg.
John: George thought it would be funny to do a yellow flash on my leg.
by Crazykazu April 17, 2017
Get the yellow flashmug.