Next time he uses a bad word, calmly remind him that the word is not a nice word and you don't want him to say it again. If he repeats it, send him to time out for not obeying you. Be consistent. Do your best to not curse in front of your child, and not expose him to adult TV or movies where curse words are used.
If you would like to speak with a counselor about this or another parenting issue, please e-mail or call our Hotline. We are here 24/7 for parents and children. Take care and best wishes to you and your child!
Boys Town National Hotline