Continuity mistake: In the scene just after Joe finds his parents, when they are sitting in their trailer talking, his parents have a stuffed clown between them. Just before Joe asks them if there ever was a time when they'd be staring at the moon, the clown is slumped forward with its face not visible. In the next shot, when his mom starts her sales pitch about having clowns for sale, the clown is now standing upright between them.
Joe Dirt: So, you're gonna tell me, that you don't have no black cats, no Roman candles, or screamin' mimis?
Kicking Wing: No.
Joe Dirt: Oh come on man. You don't got no lady fingers, buzz bottles, snicker bombs, church burners, finger blasters, gut busters, zip-a-dee-do-dahs, crap flappers?
Kicking Wing: No, I don't.
Joe Dirt: You're gonna stand there, owning a firework stand, and tell me you don't have no whistling bungholes, no spleen splitters, whisker biscuits, honker lighters, huskers dus, husker don'ts, cherry bombs, nipsy dazers, with or without the scooter stick, or one single whisking kitty chaser?
Question: I don't understand the joke that Clem says when he's cleaning in the hallway, right before the killer mustard gas sequence. He says something like, "Let me ask you something. Does your mother sew?" *smacks the object he's talking to* "Boom! Get her to sew that!" Can anybody explain this?