A brick, paper-clip, or lock pick set. Preferrably the brick, since Mexicans can't afford lock pick sets.
We couldn't open the front door, so we used our Mexican key to get in.
by richard/zachary April 23, 2006
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hay amigo are you haveing trouble using mexican key??
Try my mexican credit card, me madre gave this old thing to me, said it was mexican law .
mexican credit card is good for many things ( house key car key) use it at 7-11 after midnight.

PS if U see gringo policeman keep ur hands out of your pockets they no understand every mexican has BIG credit cards!!!!
by itichie_nocanpo September 7, 2006
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A ghetto device used to break into cars illegally.
You just need some Mexican Car Keys to own whatever car you want.
by The_Sentinal March 11, 2009
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I accidentally left my keys in my car, so I had to use the Mexican Master Key to get them out.
by wolfpacleader1986 October 8, 2010
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