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?
by The girl from the flats September 4, 2014
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Doing absolutely nothing while hanging out with your friends but talking about it like it's really cool and you HAD to be there. Does not refer to something perverted that Steve Carrell said.
"Hey Bree..I had an awesome time at that pants party"
"Yeah, we should totally get together and have another one"

The conversation is loud so as to attract others attention. Then when they question about the "party", you tell them that they have to be at one for a true experience.
by Ellen Moore October 28, 2007
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Jay's favorite thing to do! z00t z00t!
Jay: Wanna come to the Pants Party?
Random Person: Sure... What kinda pants should I bring.
Jay: We don't wear pants at Pants Parties silly: *wink**wink*
by Pants Party/Kitty Maniac! October 20, 2006
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To throw a party that consists of all the women wearing yoga pants.
Chris- Hey bro, lets have a yoga-
Ty- Yoga Pants party??!?!! I'm Down! Dank Dank!
by Fall of Troy Troy of Fall December 21, 2010
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Looking at that hot jailbait over there, I get a wild party going in my pants!

Hey Mick, I see you got a pillow on your lap. Party in your Pants?

I got a party in my pants
by mathandscifi August 29, 2009
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A party where people touch each other in the bathing suit area. Also a good pickup line if I dont say so myslef.
Brick: Would you like to come the the pants party. Oops I mean party Im my Pants?
Veronica: No Thanks Brick
Brick: How About you Ian?
Ian: No Thanks
by Ben P February 8, 2005
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