They were a perfect match as they walked away, their jeans riding low to reveal her tramp stamp and his douche cartouche.

from the Urban dictionary

wheel,

That's a **** tag.

I know their not yours, so don't take offense.

"Douche" and douche related terms seem to be the least effective when used to indicate literal definitions.

I did'nt know what a "Douche Bubble "was....

ha,

wheel,

cayman