When someone takes a dump on another's face that is covered in Saran Wrap. But first he pokes holes in the Saran Wrap. The shittee thinks they are covered, but actually they've been Buffaloed. Thus, the Buffalo Steamer.
He gave her the impression she was going to get a Cleveland Steamer, but he poked holes in the Saran Wrap and gave her the surprise of her life: a Buffalo Steamer.
by Big Bleu November 10, 2013