underchick 

When a guy dates a girl who is not as good looking as he is.

You can't bring Sarah to the party, bro. Don't underchick.

underchick by lastknownname April 25, 2014

underthink 

Verb: to think or analyze inadequately
(third-person singular simple present 'underthinks'; present participle 'underthinking'; simple past and past participle 'underthought' – informal 'underthunk' ) \ antonym – 'overthink'

It's a trick question; don't underthink it.

underthink by ΔиłĦ☼иצ ߀₡ʞ November 19, 2010

undercock

The male genitalia being viewed from an upward looking angle. Similar to the female version of underboob but with a wiener instead. Also referred to as Australian dick.

I knew I was going to have a rough day when I woke up to my roommate giving me some undercock.

Your mom seemed pretty interested in me so I gave her a little Australian dick.

undercock by nubforce November 26, 2010

Uberchick 

A hoe that lets anyone ride.

A hoe that'll ride everybody's stick shirt and blow every exhaust.

Call 1-8000Thottie, that Uberchick will give you a ride.

That's that Uberchick, first ride is for free.

That Uberchick is used more than a city bus.

Uberchick by JUNGLE FUN November 7, 2015

undercrackers 

underpants, duds.

ive got no clean undercrackers

undercrackers by ipw June 9, 2004

underchips 

The undesirable, topping-less chips at the bottom of a plate of nachos.

I asked the waiter for the check when the underchips were all that remained of my Nachos Grande.

underchips by Lakshmi Parekh October 17, 2008

undercock

A man who has smaller penis compare to his male friends'.

Tom: My gf thinks I have a big cock but she doesnt know that I am an undercock compare to what my friends are packing
A guy in the forum: Dude you sound so gay!
Tom: No I have seen them naked at the gym and besides I am only 5" long
A guy in the forum: lol you are an undercock indeed!

undercock by jimissobored July 27, 2014