Green’s Dictionary of Slang

(US teen) extremely baggy, long shorts.

1993–2003		dudebrodd on Urban Dict. 🌐 shants shants – those pants that have the zippers that turn them into shorts. my, those are nice shants you have there.
2003		TKDSurf.com 🌐 Shants (Microfiber) Shants (Cotton).