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 Tish
Afterburn
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.
After robotripping at Sesame Place, me and Big Bird lit up an afterburner and watched the sunset melt in the sky 8-}-~
By Tybie
Afterburner
1. During sexual intercourse, while assuming the missionary or doggie-style position, the male cums and simultaneously cuts a huge fart while lighting it with a match.
Good for an extra inch or two.