Undie Starch 

After a serious beat-off session or after sex the small amount of leftover semen that oozes out, stains and hardens in ones underwear.

After bangin Tina, it seems my penis has gone and made some undie starch. It is almost bullet-proof.

Undie Starch by Vandie August 15, 2006

undisputed 

Being without meaningful opposition; recognized as a champion; without disputes or failure along the way

He hasn't had any problem getting along he must be undisputed

undisputed by The undisputed y.V.G. March 4, 2014

undressing 

to remove clothing (ie. .. shorts, pants, shirts, bra, panties)

i am undressing; wanna watch?

undressing by CPlay May 28, 2008

undescended sense of humor

The condition in which a person is afflicted by an inability to be amused by certain cognitive experiences. Somebody who does not find jokes or situations that tend to make others smile or break into laughter is considered to have an undescended sense of humor.An inability to perceive what is comical. Magic mushrooms or marijuana are widely considered to be treatments for this condition.

Rodney is such a tool. He didn't even break into a chuckle when we saw that comedian with all the big dick jokes. Why we hang out with somebody who has an undescended sense of humor is beside me.

undescended sense of humor by Blenderhead91 March 31, 2009

undestoppable

the act of being almost immortal; half-super hero.

duh.

i smoked some toke and i was undestoppable.

undestoppable by crispy train jumper November 2, 2008

undressecessary 

necessary to undress

Ave and his girlfriends date was very undressecessary.

undressecessary by jmoney88 January 27, 2011

undistinguished 

Something that can't be seen

The cock was too small and or undistinguished

undistinguished by Keviusa13 April 19, 2016