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1.
An illegal left or right turn, in which a driver crosses in front of one or more lanes of traffic traveling in the same direction, thereby cutting off adjacent drivers and causing near-collisions. Refers to the seemingly lawless driving maneuvers of cabbies in Mexico. Most commonly witnessed on multi-lane steets in southwestern U.S. states.
"Chinga! That ignant driver just pulled a Mexiturn and made me spill my forty on my fresh kicks!"
by psychobabble June 01, 2006