When someone's just been high from the effects of marijuana, and they're still coming down, they're said to be "afterburning."
Person 1: "Dude, are you okay?"
Person 2: "Yeah man, I'm just afterburning."
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1. A hot, often painful dump that follows a meal of spicy food.

2. A hot, slow and often smelly fart that follows a meal of spicy food.
Man, that pepperoni and jalapeno pizza was good last night but the afterburner damn sure kicked in this morning!
by For Whom the Bell Trolls November 10, 2006
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The fiery sensation you feel on your anus after taking a potent shit; usually occurs after eating some sort of exotic food.
Deezam son, this afterburn is killing me. I shouldn't have eaten those burritos.
by the $cuN>| April 16, 2007
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The feeling you get the morning after getting extremely stoned the night before. Somewhat of a confused "not all there" feeling, as if you were still stoned but not.
Damn dude, we just smoked an O last night and I have afterburn.

I think I have afterburn, I got so stoned last night and I can't think straight.
by James Rodrickson July 9, 2007
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the remaining used herb, after you have vaporized it. Depending on the type of weed, this can be anywhere from black to a lighter shade of brown. The chances are if you're a stoner, you save this and use it in another way.
Tony: What do you do with your afterburn?
Gabe: I save it and smoke it. What do you do with it?
Tony: I use it to make cannabutter.
by StrungOut532 January 13, 2010
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A joint smoked at the tail end of a dextromethorphan (DXM) drug trip to reintensify the effects
After robotripping at Sesame Place, me and Big Bird lit up an afterburner and watched the sunset melt in the sky 8-}-~
by Stoned Faux July 27, 2018
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A fart that starts quiet then blasts at the end.
Dude - I was at the library, started a quiet fart and thought, what the hell, time to turn on the afterburner.
by RNPS January 5, 2008
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