A "weak" mustache that is grown by a 15 or 16 year old that doesnt shave. Mexistashes consist of just peach fuzz.
"Al has a mexistash"
by will November 29, 2003
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by fghjkjh February 25, 2008
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Get the Mexistash mug.by anonymous...u no who i am chasye April 24, 2006
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