Bullflay was a fat male weasel slave driver on the Goreleech. He was a sadistic bully and would savagely whip all oar slaves who talked or stopped rowing. Although he seemed to be quite powerful to the oar slaves, he was actually terrified of Ranguvar Foeseeker.
Ranguvar bit one of Bullflay's ears off when he foolishly got too close. In the end, his fears became reality; all the oar slaves escaped and Ranguvar choked him to death with his own whip.