1. Seemingly useless rubbish which sits around for months and is inevitably disposed of the day before it is needed.

2. A reference to something of little or no value

3. The male genitalia

4. A kind of chinese boat

5. Heroin
1. "Where is the February 2002 issue of Playboy... it was here yesterday?!?"
- "Dude I chucked that, the pages were stuck and shit, it was junk"

2. Suped up Honda Civics and bubble gum pop music are junk

3. "Daaaamn! check this out, dude just got kicked in the junk"

4. "Did you see the Jackie Chan movie where hes fighting on the junk in Hong Kong harbour?

5. "Oi! Get off the junk and straighten up your shyte life!"
by whiskymack February 23, 2005
Penis and testacles.
Shut up or I'll kick you in the junk!
by Distrust February 7, 2003
Dude you just touched my junk!!...do it again ;)
by General Turtle February 4, 2003
I was high on junk, and the warm winds of santa anna felt alright.
by hott enchilada July 17, 2003
A mans special place including both his shaft and balls.
That chick was all up on my junk
by chillinginjerz October 19, 2006
"man, they may as well add junk to the medical dictionary as an anatomical term for male sex organs" -boy in my class
by bea July 1, 2003
male genitalia, male sexual organs, penis+testicles
Dialogue from Juno (2007) movie:

Punk Receptionist: Free condom? They're boysenberry.
Juno: No, thanks. I'm off sex right now.
Punk Receptionist: My boyfriend wears them every time we have intercourse, it makes his junk smell like pie.
by Bletheringeejit January 27, 2008