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Loud horn commonly used in electronic dance music, reggeaton and hip-hop; which summons Mexicans in the surrounding area to dance. Made famous more recently by Mad Decent, DJ Felli Fel, Power 106 etc. etc.
Manny: Damn ese, that DJ was so lame.

Jesus: Naw fool, you left before he dropped the bean horn! Chicas was gettin down!!
by The Shere Khan July 28, 2010