Double pants

The act of wearing two pairs of pants (ex. shorts over long pants). If you wear three pairs of pants, it’s called triple pants. Brendan from Pokémon Emerald invented this with his capri pants/sweatpants crap, then May started almost a decade later with her denim shorts and bike shorts. Holy hell.

Jason: walks in with two pairs of pants - given example
Freddy: jason wtf are you wearing
Jason: double pants