No pants party 

1.) A slang term for sex.

2.) A party or social event where guests are encouraged to not wear pants but instead wear their undergarments.

1.) She invited him to a no pants party at her house.

2.) Brandon sent me an invite to his no pants party next month. Boxers or briefs?

No pants party by The girl from the flats September 4, 2014

Banana-pants

Awesome, extremely cool, sexy, rad

That setup is banana-pants!!! I wish I had one just like that.

Banana-pants by Barry blaaaaaaaaaaack April 22, 2015

Sad Pants 

A term either to describe a person (usually female) or a phenomena in which they attempt with a desperation to fit into a pair of skin tight jeans or booty shorts that don't fit at all. The result is people first noticing then running away screaming in disgust. Also, the said jeans or booty shorts look like they are crying for the person to evacuate their space which is beyond any reasonable capacity. Hence why it is referred to as sad pants.

Jesus H Christ Sad Pants!!!! Do you own a pair of jeans or shorts that have actually lived!?!?!!?!?!?

Sad Pants by O.G. Junior Mint September 18, 2015

pussy pants 

similar to camel toe only with jeans on

pussy pants by crap magnet May 25, 2003

shrimp in pants 

A strange phrase that Alexes and Jeslyns made up while high on caffeine and lack of sleep. Has no meaning whatsoever, but it's good for a giggle or two.

They entered the room and yelled "SHRIMP IN PANTS" before running away giggling insanely.

shrimp in pants by Jeslyns November 15, 2003

drop your pants 

Originally started to define a rebelliously-silly style of Punk music (ie NOFX, Propagandhi, Vandals) but now extends to anything political which doesnt take itself intirely seriously.

"this song is so drop-your-pants"
"it's drop-your-pants!"
"I'm gonna drop my pants for the government!"
"Noam Chomsky is a drop-your-pants kinda guy"

drop your pants by Rory May 18, 2003

In My Pants 

1. When someone says something you don't like or think is stupid, you add this phrase on the end.

John: I can bench 200 pounds. I'm so strong.
Chris: I have your 200 pounds in my pants.

In My Pants by Chris Geisert December 28, 2007