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The act of sprinkling pubes onto your significan other's head while they're in the shower.

Originated in a rage comic on Reddit.
After I trimmed my pubes this morning I gave my girlfriend a mexican beard.
by hezzzer April 04, 2011
Throwing shaved pubes onto someone while they're in the shower so they they stick to their face like a scraggly beard.
Helen made me sleep on the couch last night after giving her a Mexican beard before her big meeting with her boss.
by the_sinic April 04, 2011