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6.
A person who is rarely invited but follows a group or person around all the time.
"Trust me I didn't invite her, she just follows me around like a back pocket".
by Ryan Mclionson November 11, 2010
 
1.
having someone of importance at your disposal to help further your own agenda. usually involves kickbacks of some sort.
it's a well known fact that many corporations have politicians in their back pocket, thats why it seems like they're the ones really running things.
by hipster September 06, 2004
 
2.
to keep a crush/potential crush in mind for later on when you need a date.
if things don't work out with bob, well, I've always got bill in my back pocket.

also: man, I've had bill back pocketed for years! I cant beleive we finally went out!

or: you can't trust margo, she's always got at least four dudes back pocketed.
by shilojean May 11, 2006
 
3.
Referring to a member of the resume of individuals you have engaged in sexual relations with, therefore making them, essentially, sloppy seconds to anyone else. Often not mentioned until an acquaintance is already involved in a relationship with the said person.
I have no issue with Matt asking her out. Bottom line is I’ve got back pocket. It will absolutely disgust and drive him nuts whenever it comes up.
by CharlieHustle October 18, 2010
 
4.
1) A band or artist that is insanely good, but that no one knows about. They may have 1 or 2 songs on youtube, and the only place you can buy their music is on itunes.
2) A song or mixtape from a famous band or artist that you can only find through random downloads and links.
Hazen: Hey wait, have you ever heard of the Spokes?
Lee: No man, they must be backpocket.
Hazen: *shakes head in disappointment* that drags dude. They're too good.
by Stagedfiasco319 July 25, 2010
 
5.
to knock some 1 out or and 2 put them on their ass
"mike Tyson got put on his backpockets his last fight"
"hot sauce put son on his backpockets"
by kory August 11, 2004