Sex move, Cowgirl based. The bottom thrusts repeatedly, bouncing the top up and down on them. Known as the reverse trampoline because the bottom (the trampoline) bounces the top.
"My girlfriend and I tried a reverse trampoline last night."
When one does a poo and doesn't want to make a splash one puts down some tissue paper to minimise embarrassment
'Hey man, I didn't hear you poo'
'Yeah man, I used a poo trampoline'
What somebody under 5 foot does to somebody.
The guy/girl had to trampoline headbutt that dude.
What somebody under 5 foot does to somebody.
Trampoline headbutt coming at ya!
The act of stretching one's scrotal skin out with two hands - using thumb and forefinger - parallel to a primary surface (i.e. a bed or floor) until smooth, with the penis resting on top, utilizing the grip and taut skin to move the scrotum up and down at various speeds to have the penis bounce off of it continuously.
I’m going to go home and play undercover trampoline
The cursed definition of jumping on a trampoline. Users use the word trampolining in internet GIFs, using mostly anime characters ahem- "jumping."
A tramp stamp above an ass that bounces when slapped.
Kasey had a booty so fat that her tramp stamp turned into a trampoline stamp