A more sexual version of a sleepover. Basically people show up in their PJ's, get stoned, and then procede to have all kinds of sexual experiences with the other guests, leading to a large orgy involving the host, all of the guests.
Guy1: Dude, Stacy's having a pajama jama jam, you going? Guy 2: Hell yeah!!!! No way I'm missing that!!!
A specific position in which you and your specific spouse participate in, most commonly a male and female. It is when the female sits upon the lap of the male and no words are exchanged yet there is a great amount of sexual tension which builds. This is usually hold usually implies "i'm not gonna bang you now, but i'm going to bang you later, and you're gonna take it."
That night at her crib, i totally gave her the nam-a-slam-a-jam-a hold. i totally banged her later that night.
A woman who is built and stacked, has curves in all the right places, has perfect body measurements in every dimension, a perfect figure, extremly beautiful, sassy, classy, foxy, and heavenly.
Basically, a perfect woman.
Refer to the song "She's A Bad Mama Jama".