When you cum on your partner's face and proceed to push her down the stairs.
My bitch got uppity so I gave her a mexican landslide and she broke her arm.
by Cwama March 02, 2007
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A sexual act in which you are getting head while eating mexican food. You unexpectedly fart which excites you and you ejaculate in the chicks mouth, this causes her to back away and fall down the stairs causing a landslide.
Person 1: My chicks in the hospital

Person 2: Why

Person 1: I gave her a Mexican Landslide
by jhdsvjhdsajhfd April 10, 2009
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