Any coinage which has been inserted into one's ass and then recirculated. Becomes a breathmint if you can somehow fool someone into sucking on it.
"You know, sucking on pennies helps clear booze from your breath", offered Trevor.

"No shit", responded Carol.

"Uhh, yeah, that's right, no shit", a smirking Trevor responded as he handed over a few Tijuana breathmints.
by Herr Stehpinkler March 10, 2005
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