lunderfuck 

(n) - a moment of recognition when you see someone on pornhub that reminds you of your mother

I was having the time of my life lastnight when I had an extreme lunderfuck...

lunderfuck by halfincher April 9, 2014

Underfucked 

sexually deprived

1. Yo look how hard she's hitting on him... she's definitely underfucked!

2. That guy is completely underfucked. He just desperately asked her out again after she told him to fuck off for the third time...

Underfucked by Stephen and friends June 26, 2010

underfuckingstand 

When you don't understand something and you are super pissed.
When you don't feel like saying "fucking understand"
When fucking understand just doesn't quite display the needed emotion.

"I don't underfuckingstand why your acting like this"

underfuckingstand by Desiree Aho January 9, 2008

underfuckingstand 

underfuckingstand - Understand, with "Fucking" inserted in the middle, making it an exclamation of frustration or, in some cases, a joking statement.

"What part of this do you not underfuckingstand?!?" or "I dont underfuckingstand!"

underfuckingstand by Steve October 24, 2004

Dunderfuck 

When "stupid motherfucker" just isn't enough. A person of unlimited stupidity.

Linkin Park is not metal, you fucking asshole. God, you're such a dunderfuck.

Dunderfuck by Ken April 19, 2003

underfucker 

the person who criticizes a lot

(at a lesson a person criticizes all the time)
me: He's such an underfucker!

underfucker by beduina November 6, 2013

underfuck 

The act of making love to someone in an unsatisfactory way.

She complains I was just another underfuck.

underfuck by Frank1957 November 2, 2007