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.
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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.
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The product of rubbing cocaine all over your face and upper lip.
Yo anybody wanna snort off my Mexican beard?