When someone has taken ecstacy and after the energetic facet of the drug has worn down, the user feels like they want to sleep. They could even sleep on the ground in the middle of the city. Usually comes as an after-effect of a really energetic night then a few hours later you feel really tired. Probably because the energy is coming from no-where and your adrenal glands are putting out energy they don't have.
'What's wrong man?'
'Awww fuck I'm smacking hard.'
by Erin Hellyeah May 29, 2008
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To hit, usually with one's hand
Roger: I'm going to smack you in the face!
by gbiche April 23, 2006
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act of being bent, smoked up, high, drunk

when someone is "Smacked" that means that they are either high or drunk. You see a man, " yo, he's smacked as hell", that means he's high.
by Ohmod Logan June 23, 2006
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When ur eating and ur sibling or friend chews with their mouth OPEN! THE MOST ANNOYING PET PIEVE EVER!
(Brother is Smacking)
Me "STOP SMACKING"
Brother "Okay!"
(HE CONTINUES TO SMACK)
by Lala👑 September 15, 2018
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Food that's so good it makes you "smack" so you call it smacks or smackables
Bruh that food smack
Let's go get some smacks
by Hunaveli December 20, 2016
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Slang for Herion, originates from the sound of the herion user prepping veins for injection.
Merdeith is smacking her arm to prep for the injection of smack.
by Antonio Xias Georgé September 16, 2018
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Money. One (1) dollar. Can be coin, bills or a combination of both.
I just dropped 50 smacks on some new headphones.
by umbepo September 26, 2005
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