Heroin. Most frequently used in the 60s.
When the smack begins to flow, I really don't care anymore...
by Lurhstaap December 28, 2003
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smack is:
a) heroin
b) to slap a bitch in a rude way
c) the noodles (smack ramen)
d) vagina, you dip shit
a) dude i need to stop using the smack.
b) i smacked that bitch.
c) i ate all your smack
d) i fucked her and she had a tight ass smack.
by b790790d March 25, 2005
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disrespectful comments made toward or about someone

all through the interview, all he did was talk smack about A-Rod...not cool!

"don't lay any of your smack on ME, flip!"
by ColdOne November 14, 2005
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Soldier Minus Aptitude, Coordination, and Knowledge, A Fourth Class Cadet at the United States Air Force Academy.
Quick, find the SMACKS so they can do pushups.
by hawk2100n October 02, 2007
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to spit game at a joint or to hit on a girl. to flirt with a girl and try and get her number
by kING bREEZY August 18, 2008
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