Any long pants made of material, that are comfy and will keep you warm during extendedgame play. May include but is not confined to: pajamas, trousers, hippy pants, underwear, and trackies.
Person 1: "Dude, how cold was it last night!"
Person 2: "Yeah I was up playing Halo till 3, good thing I had my gamer pants on!"
n. A usually email/social network-based game in which you add "in my pants" to the end of a movie title, song title, or book title. Seems to work best with song titles, although it depends on which one you use. Another variation is "up my skirt," if you're a female. Like many games, this could probably be a drinking game if you add other rules to it.
Guy: Let's play the In My Pants Game with song titles!
Girl: OK! Something's Got A Hold On Me Up My Skirt!
Guy: The Thrill Is Gone In My Pants!
Having gamerpants is basically having underpants with hella shit stains over it because these fortnite kids cant be bothered to take a shit when they need to.
Mom: Son, I found your gamerpants under your bed, you should really consideractually caring about yourself.