5. You should wear a belt, son, to keep your britches from hanging down around your butt!
Meaning: pants. Britches aren’t simply relegated to long pants; they’re any kind of garment worn at the waist, except skirts. Actually “britches” is most often applied to men, as historically, women and young girls wore skirts exclusively in the region. There’s also the expression “too big for your britches,” meaning taking yourself too seriously.