1 definition by Gary_Owen

Top Definition
A contraction of the Spanish "mentiroso" and a certain less-than-candid sport celebrity's name. Mantiroso: A person who tells tall tales; a fibber; a liar.
Don't tell me you were not feeling well when I saw you out on a date with some other girl. You're such a mantiroso!
by Gary_Owen January 19, 2013
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