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.
"After Jeremy lit an afterburner, all hell brokeloose at the Chi-Alpha Homecoming orgy."
After eating extreamly spicy foods for a day or two you shit in a condom and freeze it. Cut the rubber off of it and proceed to fuck somone in the ass with it. After it begins to melt it will start burning the receivers anus.
My old lady wanted to "spice" things up in the bedroom so I have her an Alaskan afterburner.
After you cum, nut, or ejaculate, you continue to masturbate resulting in a burning sensation in the genitals after the next ejaculation in the same session.
When a female becomes attractive after a period of time. Sometimes used to describe a female post relationship I.e. break up, dumped. Commonly used by guys who have been friend zoned, to describe a girl that's turned them down by describing how attractive that girl has become in a certain amount of time. Typically causes sense of regret in men. Makes women more desirable.
"My Ex girlfriend looks more attractive since we broke up"
"It's the Afterburner effect, she's now more attractive and desirable to other men.
"I wish I asked that girl out when I had the chance, since then she got hotter and has a boyfriend. That Afterburner effect screwed me over".