To razz is to have a male human/donkey specimen take his erected penis, and lightly tap and play with another human/donkey(s) anal hole. This usually results in massive orgasms and seamen to fly everywhere. (CAUTION: Can cause harsh rashes and sudden illness of the anus.)
Greg likes to "razz" Glenn's anus.
by Gilgamesh Duke of Snodgrass October 06, 2006