Oh, true. And it being a gym also supports the “ass” angle.

They didn’t say “a piece of,” just “a piece.” Since we’re talking about slang and since “a piece” is slang for “a gun,” we’re forced to conclude that the advertisement is for a gun shop.

Every time you enter the bathroom, BAM! You wonder if the rest of the house has finally shorted out your visual cortex and given you monochromacy. When you leave it, however, the assault continues. Yay?