look up any word, like trill:
 
1.
to steal a girl from a someone that they are trying to hook up with.

Bob:"Dude, I met this chick at the bar last night, and later I went for a bathroom break. When I came out I saw John making out with her."

Joe:"Aw man, he totally rack jacked you"
by mista biggins October 07, 2006
 
2.
To make it with a girl someone else was just hitting on.
Ted's Dad was Barney's wingman, but when Barney couldn't seal the deal that night, Ted's Dad rackjacked him.
by Declow October 03, 2006
 
3.
to steal one's date, escort, etc.
origin: tv show "How I Met Your Mother"
I can't believe he rack-jacked my date!
by smoocharoo October 02, 2006
 
4.
To steal a girl some other guy was running game on
Mike totally rackjacked that sorority girl from me last night
by JohnMoor November 02, 2006
 
5.
Stealing a perfectly nice set of breasts right out from under your friend.
I would have scored with that busty blonde last night but I got rackjacked by Joe.
by MJ Adams October 03, 2006
 
6.
to steal a girl from a someone that they are trying to hook up with.
"Dude, I met this chick at the bar last night, and later I went for a bathroom break. When I came out I saw John making out with her."

"Aw man, he totally rack jacked you"
by mista biggins October 03, 2006
 
7.
Similar to a back jack except instead of spreading your filthy sin cream on a ladies back you decorate their breasts.
Would you and Sarah like a nice cup of tea dear?
Oh for Fucks sake Mum, I was going for a nice rack jack then and you've made me miss. I'm not cleaning that up!
by dogegg July 28, 2010