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1.
ICG
An acronym for the phrase "I Call Greens"
-"what up playa"
-"what up"

-"lets wise"
-"ICG!!!"
by john sawyer June 13, 2007
 
2.
ICG
International Cum Guzzler. someone who guzzles cum on a regular basis in one or more countries.
Your mom is a massive ICG in Africa.
by Horny sucker November 18, 2010