Quitter Pants 

pants not meant for public viewing, such as sweats or pajamas, worn to signify the end of productivity

Sara: "I just don't understand why kids these days walk around in their tacky sleep clothing."

Joe: "You got me, Snookums. I know it's too early in the day to throw on my quitter pants."

Quitter Pants by acemccool August 24, 2009

beat the pants off

To completely "own"; to scare the crap out of someone; to beat someone at something

"I just beat the pants off you at Halo 3!"

beat the pants off by Cory N. January 12, 2008

Balls in the pants 

When someone wants to ask someone out, you put "the balls in the pants". Mostly used for girls who want to ask out a guy. Can also be used for a guy who has been longing for a girl for a long time but doesn't have the balls to confess.
Variations can be just saying the phrase, or putting super balls in each pocket to give you courage.

Jocelyn: I really really really like him but I can't tell him. What if he says no? What should I do.
Jasmine: I think it's time for you to put the balls in the pants.

Balls in the pants by No one loves the middle child March 31, 2009

fanta pants 

origin: Scottish
(from gaelic 'farnter' meaning flame-haired)
fanta pants refers to a true ginger minge, natural orange collar and cuffs.

"phoar, look at that hottie, she's a red-head, but d'ya think she's a fanta pants?"

fanta pants by rosco pico April 6, 2004

Yoga Pants 

greatest invention ever made. if used properly on the right girls,ass becomes a magnet to the eyes of every straight man alive.

guy:holy shit look at that ass!

guy2:i know,yoga pants are amazing.

Yoga Pants by 233413 May 22, 2011

No Pants Day 

A National holiday in which the first Friday of May you wear no pants or shorts over your underwear.

Girl: Why did dad go to the office today without his pants on?
Brother: It's the first Friday of May you retard, No Pants Day.

No Pants Day by /NickSavage May 7, 2010

Fly by the seat of my pants 

Idiomatic expression used when you want to mean that things are not planned/ organized / expected.

I don't know yet what i'll be doing during my holidays in Europe: Restaurants in Paris, shops in Milan, beers in Berlin ...i think i'll let myself fly by the seat of my pants.

Fly by the seat of my pants by Clairoush August 21, 2011