A pair of comfy pants that have some give when you drink and eat to much at parties, they will also have some stretch so they will not rip if you dance the night away or fall down drunk.
its going to be a greatparty tonight, dont forget to wear your party pants
The place where the party is. Always. Kinda like giant clown pants that you have to hold out in front and scooppeople up in. Teachers, Dog Ramblers, Fools, all are welcome in the party pants.
Dude 1:Dude! I just nabbed Mr.Gilette in my Metaphorical Party Pants!
Dude 2:*Scoop* Yeah! Just got three hot chicks and a rambler in mine!
Dude 1: Damn it.
Pajama casual is a term used when working from home and preparing for a video conference. All business above the waist and your pajama pants down below.