jumpmaster 

the dude who looks after you when you're learning to skydive

that twat of a jumpmaster pushed me out of the plane

jumpmaster by Mat D April 22, 2005

DJ= Digital Jammaster 

DJ was once known as a Disc Jockey, but now we are in a digital Era and the name needed to be updated so behold to the revolution of Digital Jammasters.

Digital Jammaster Jam master DJ= Digital Jammaster

DJ= Digital Jammaster by Spunkerzzzzzzzz1992 November 29, 2011

jump master

when a lady is giving u head but doesn't want you to cum in her mouth. You cum in your hand and slap her in the face and say "All OK jumpmaster"

Noodles and Smeduim were getting head, and pulled off the jump master. But Giggles got it from a dude!

jump master by thobobtim February 22, 2008

pumpmaster

One who participates in the smoking of either cigarettes or pot to the extreme.

Better keep the gear away from the pumpmaster or it'll be the last you see of it.

pumpmaster by Darrell Smith June 17, 2005

Junkmaster 

One who rules over a companions junk, doesn't put out but expects to be served.

Look at Jamals stupid ass tryin to please that junkmaster.....and he ain't even hittin it!

Junkmaster by Rodney G September 30, 2008

RumpMaster

A dude that talks women into anal sex

James: "Dude, look at Dean over there!!!, he just RumpMastered another bitch!!!" Marion: "Ya dawg, he must have stock in Johnson and Johnson with all the lube he buys!!!!!, Damn.

RumpMaster by CDAWG54321 May 1, 2022