uncapable 

Being unable to perform a specific operation due to a sex-related injury or accident.

Kim was uncapable to orally inflate balloons after her accident while fellating a dolphin.

uncapable by Kim Does Speak Bad March 31, 2009

unfappable

Something so sexually undesirable, abhorrent or repulsive that it cannot be used for masturbation purposes.

Opposite of fappable.

Guy #1: Did you see "About Schmidt"?
Guy #2: Jack Nicholson and Kathy Bates? Jacuzzi? That shit was unfappable.

unfappable by Wrebagzhoe September 24, 2009

Unrapeable

Someone who is so grotesquely disgusting they aren't even worth the energy to rape.

Allan - Hey man, did you see that lady?

Brent - That bitch is Unrapeable.

Unrapeable by 7O01 March 17, 2012

undatable

not able to be dated at all

the writer of this definition is undatable

undatable by c1094 September 11, 2013

Unmadable 

Unable to be mad at.

She is unmadable.

You can't be mad at him, he's unmadable.

Unmadable by TSAQ November 19, 2007

uncumable 

When one is, through possible over-indulgence of various substances, or by simply being a master in the art of ass-tappery, unable to cum despite trying incessantly.

One of the two different categories of whiskey dick, one a dysfunctional penis, the other, and overly functional dick.

"Dude she thinks I'm a god of the dick, I was uncumable"

uncumable by Nate Froggy Frogg September 23, 2011

untappable 

A girl that is too ugly to tap. Its like saying I cant tap dat.

The untappables came out when I was walking down the street with my peoples. They tried to talk dirty so I ran.

untappable by Papoosenigga January 12, 2007