Penis Knuckle 

1. When the penis is folded over in your pants and protrudes through revealing a short nub to be seen by all, giving you that uncomfortable feeling that you cannot fix when you are in public.

2. A lazy person who is dumb founded to everything around him/her.

After the awkward silence, he said, "Why you gotta be a penis knuckle?"

You're a penis knuckle!

Penis Knuckle by CBizkit84S March 8, 2013

penis knuckle 

1. An absolutely useless thing or person.

2. A knuckle protruding from the shaft of the penis.

My brother is a penis knuckle.

When John awoke in hospital to find he had a penis knuckle, he knew the skin graft was a success.

penis knuckle by Noso December 30, 2008

Knuckle Penis

The act of pretending that the knuckle of your hand is a stubby penis. This act is performed to shock onlookers.

One performs this act by covering all but the knuckle of one hand with the other hand, and placing it over one's genitals.

Knuckle Penis is usually performed over clothes, but it is not unheard of to perform the act underneath clothes, and have only the knuckle exposed through the fly.

"On no, Pops is doing knuckle penis again!?"

Knuckle Penis by EyeBall November 11, 2005

Penis Knuckling 

To insert an object into ones penis (urethra) to gain pleasure or because one is a masacist. Anytime an object is inserted in the penis not for medical reasons.

If you start penis knuckling you may injure you urethra due to its soft interior.

Penis Knuckling by Mr. Johnny Hammerballs March 18, 2010

penisknuckles 

1.Someone with penisknuckles has such an erected hard penis it is as one large knuckle.

2.fighting someone with your penis.

Dan, i am no match for your penisknuckles.

Zack and Blake are going to fight penisknuckles style.

penisknuckles by Zachary Rosas June 21, 2007