weakdick 

A penis incapable of successfully sustaining an erection.

You have a weakdick on Thursdays, aye? I suppose my mom won't be at your house on Thursday then.

weakdick by B-Drac November 8, 2003

weakdick 

someone, or something so extradanarily lame it/he/she evokes the character and disposition of a superiorly lame, impotent, useless penis.

This fuggin' Calculus class is weakdick man!
-or-
WEAKDICK! You took my last fuggin' beer you chauncey! BURNT!

weakdick by chauncey mcfadden November 6, 2003

Weak Dick 

To fuck really bad, making you have weak stroke game. Unapproved by all women.

Melvin Ellis has weak dick so I broke up with him.

Weak Dick by Sexcgirl19 November 11, 2015

weak dick 

a penis that is misleading and turns into a waste of time fucking all off beat

I been talking with this dude for a minute so I was pissed off when he gave me that weak dick.

weak dick by disappointedwoman January 22, 2009

Weak dick syndrome 

Kyle Creutz

Bro: bro so I heard you got a weak dick syndrome

Kyle: yeah that's why I don't stay with anyone for over a year

Weak dick syndrome by Heheheyoudumb November 16, 2017