Same as a mexican avalanche, except instead of cumming in your bitches hair you piss in it.
i gave her so many mexican avalanches i had no more cum, so i gave her a mexican river. That slut didn't even realize!
by Chode Master God November 24, 2004
like the Los Angeles river, If U must lift leg to cross then its a mexican river
on trip to benjimn hill in old mexico I cross 4 mexican river eat 100 mexican fly's & got sos shit ..
Muy bueno trip...no?
by itichie_nocanpo September 28, 2006

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