You use house clothes instead of pyjamas to sound less slovenly.

Comfortable worn out clothing that you would never wear in public but love wearing at home. Typically fashioned with a hole here and there and older than most of your furniture. House Clothes may include (but not limited to) stretchy shorts, cotton booty shorts, old basket ball shorts, that one shirt you bought at a swap meet, your boyfriends band tees, sweat pants (preferabley black to hide the stains), oversized sweat shirts, nudity, etc.

Dumpy nasty pajama type pants often seen worn by skanky and/or fat women out in public. The kind of thing you see at WalMart or a corner store in the ghetto. These clothes should only be worn in the house and by nasty looking women.