Top definition
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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Aug 9 Word of the Day
Large, beautiful breasts that are keep well consealed and initially appear to be much smaller and less impressive than they actually are until unleashed.
I think Alicia may have some real sleepers.
by KABT October 26, 2007
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4
Heroin.

Also known as Dragon, Dope, Heron, Herone, Hero, Hera, H, Big H, White, China White, White Nurse, White Lady, White Horse, White Girl, White Boy, White Stuff, Boy, He, Black, Black Tar, Black Pearl, Black Stuff, Black Eagle, Brown, Brown Crystal, Brown Sugar, Brown Tape, Brown Rhine, Chiba, Chiva, Chieva, Mexican Brown, Mexican Mud, Mexican Horse, Junk, Tar, Snow, Snowball, Scag, Scat, Sack, Skunk, Number 3, Number 4, Number 8, Bombita, Brea, Blanco, Bonita, Caballo, Calbo, Carga, Carne, Chapopote, Chatarra, Chicle, Cocofan, Gato, Heroina, La Buena, La Chiva, Polvo, Tecata, Tigre, Tigre Blanco, Tigre del Norte, Vidrio and Zoquete.
Snuffaluffagus: "I'm sick, Bird. I need some smack, Bird."

- Dave Chappelle
by ROCKintheCDA November 06, 2010
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6
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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