punishments that fit the crime are especially fun to think about when it comes to cussing! there's so many ways that you can make babies sorry for having such a dirty little mouth, especially depending on which naughty word they said <3
did they say "fuck"? silly baby- you're much too little to have sex, so why do you think you'd be allowed to say that word? all you can do is make pushies in the bouncer while you watch mama have grown-up sex. or mama can fuck one of your big siblings- either way, you'll be getting a reminder of what you don't get to have when you can't even get out of diapers.
did they say "dick" or "cock"? i think some corner time will be appropriate- and i'll have you do some special training with my biggest dildo, usually reserved for the big kids who can handle it regularly, so that your dirty little mouth is occupied during your timeout. and if you have a little nubby between your legs yourself, that will be getting locked up until i've decided that you've learned your lesson.
did they say "shit"? oh poor thing, are you saying that because you're a little backed up down there? mama can fix that with help from a little laxative suppository, since mama knows how much you love it when she sticks things in your bottom. so you'll be pushing your stinkies into your padding in no time. and if you don't want to sit in it until mama's feeling nice, you'll use the more more age-appropriate words of "stinkies" or "poopies" in the future.
did they say "bitch"? did you know that they call female dogs that word? in a similar fashion, i think we can put you in stuffed triple diapers and paw-themed spiked booties and mittens that leave you crawling on the floor, with a little leash and collar to enforce your status as mama's little pup~ you'd be adorable drinking your baby formula from a bowl on the floor, don't you think? that's a rhetorical question- padded puppies don't get opinions, nor do they get speaking privileges if they're going to abuse them.
did they say "ass" or "arse"? well, the only one you'll be thinking about is their own once it's been reddened and plugged with ginger root after their spanking. aww, poor thing, does it hurt? good, it's supposed to. because if hurtful things come out one end, then it only makes sense to ensure that your other end hurts to keep things balanced~
pair that with a standard mouth soaping and/or some time with a gag of mama's choice, and i'm sure somebody won't be thinking about saying such naughty words again anytime soon, huh?