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1.
Similar to spooning. However, the "little spoon" is larger than the "big spoon, thus giving off the image of a human jetpack.
Mark's girlfriend is like 6'2. I caught them jet packing in the common room watching the food network last night.
by The GodFader May 11, 2011
 
2.
a variation of spooning where the guy is the little spoon (also assuming he is the taller partner. Optionally: might allude to the girl being a farter)
A enjoys his gf jetpacking him...
by rabbitmob May 02, 2011
 
3.
Act of cuddling where little spoon becomes big spoon. Essentially the shorter person is on the inside of the couch and the taller person is on the outside.
Tyrone: Baby just hold me.
Shasta: Fer sho lets go Jetpacking than.
by st9man August 07, 2013
 
4.
When the male is the shorter partner in the sexual encounter and is performing intercourse from the back.
"Gigi is mad short, he must jetpack on Sarah all the time."
"Oh definitely he is mad jetpacking on her."
by iJetpack December 01, 2011
 
5.
partaking of sex through a persons shoulder blades squished together to form a sort of half pipe shape while resting balls on the back of the neck.
My parents saw me lying face down and asked what the hell was going on. I told them i was jet packing
by B0rne May 26, 2008