stump jumper

Refers to a type/sub-brand of mountain bike.

The Stumpjumper was one of the earliest bona fide production mountain bikes —- a fact Specialized is trumpeting as the Stumpjumper turns 25 years old in 2006. The first two mass produced mountain bikes were sold in 1982: the Specialized Stumpjumper and Univega Alpina Pro. The word is actually "stumpjumper" instead of "stump jumper."

by PaulaForUrban December 30, 2007

jamerica

The act of female and male laying on each other whilst the male bites on the female's shoulder.

James was jamericaing erica.

by UmCheckedMan May 28, 2009

jumper puppies

British expression: Jumper puppies are the lovely little mounds which reside within a woman's jumper (Amer. translation - a sweater).

"Wow, nice looking jumper puppies!"

by MATCH Joe Blow October 19, 2006

jamped

Past tense of jump

Tarra jamped over the fence.

by cutter Buter September 20, 2018

Jaspering

What Jasper does when he is in the bathroom by himself.

Person 1: Where is Jasper? He’s been inside the bathroom for 2 class periods.

Person 2: He’s probably Jaspering

by SadboyMqtthew69 April 10, 2020

sand jumper

a racist slang for anybody of middle eastern decent
AKA Sigger...

Tenchi Muyo in "No need for an example"

by scubes October 26, 2004

Jammer

A large line of cocaine usually forced on to another by way of peer pressure, usually from a close friend. Always sniffed as a line, never as a bump and its size is always too large for what your friend thinks you can handle. The next day, the two friends usually talk about the big jammers taken the night before.

(peer-pressuring best friend) "Come on bro, do a big jammer."

(you) "No way, man."

:somehow you wind up taking multiple jammers:
(the next day)

"so how about those jammers last night!"

by TNT.TNT May 11, 2014