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Short for Fort Collins, a city in Northern Colorado. If you're ever there stop by Blue Hall, it will change your life.
What's going on in FoCo tonight?
by YaMar617 June 28, 2005
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Cristal Meth smoked in a light bulb. Heavy use of this drug can make you very agressive, Schizoid and Paranoid.

Other spanish slangs we use he in Mexico are:
Cristal, Cri-Cri, Cranka, Hielo, Vidrio, Mierda, cagada, Cristina,
Michi: Hey Tapa, give me 2 hundred pesos of Cristina, Now!
Tapa: Sure thing man there you go don't go nuts, take it easy
Michi: I can't live without this shit man, I go LOCO without FOCO!
by ARIELROCK May 02, 2010
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The short term for crystal meth,ice or the object used to smoke it. spanish for light bulb
Big Sal "whats cracken homie"
homie "what up big homie"
Big Sal "hand over all the foco ey"
by Nigga4rmthabowl June 07, 2009
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To focus so intently on a person, one sees into their soul.
No one plays poker with Melissa because she has foco vision.

At the poker table, Melissa was giving Brad a foco stare.
via giphy
by BankPin1969 February 15, 2018
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Foco, fear of coming out, is a rational fear of letting people know who you truly are, politically, ideologically, philosophically.
I’m suffering from foco #foco, that people will attack me for being pro-choice/pro-life
by debbido56 July 15, 2018
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