A person who perpetually picks Yoshi in every Nintendo game available. The player often rants and raves about how great Yoshi is and that the player always picks Yoshi because of those reasons. A yoshbag is extremely aggravating mostly because of the fact that Yoshi is a quality character in most, if not all, games.
That goddamn yoshbag just blew past Peach for first place, what a motherfucker!
How did that yoshbag get a Lightning in first place?!