When a male and a female decide to engage in intercourse and other sexual activities (kissing, making out, hand/blow job etc.)
Person 1: Hey where's Melissa and Robert?
Person 2: I'm pretty sure they're jammin' it
by MeatMongrel June 5, 2019
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To call a 14 year younger children in Korea (especially used for boys) It was started in a service company called TTS. In Korean-잼민 This word is usually used for joking with your friends.
Friend 1: Hey you Jammin!
Jammin: Me?
by hehehehehehhahah November 25, 2021
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Yo your outfit jammin today”
by swaggy4life September 13, 2021
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Cool, chill, awesome, adj.
That corndog's pretty jammin.

This jammin jam we're jammin to's jammin.
by JamminWeather August 25, 2019
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Something you have onto yourself and you don’t even notice. AKA a “seme
Hija, se dice se me, Jammin
by Manuki December 18, 2021
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When your buddy soaks a tampon in liquor and puts it in anus to get drunk.
by Sickkko June 19, 2022
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listening to music while high on a very dank marijuana
also: J Jam
I love J Jammin
I prefer to J Jam my music
by CidarQuan May 27, 2023
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