Slam...not damn!

Well, unfortunately my child has inadvertently learned a cuss word from "Elmo's Magic Cookbook." Although I cannot claim to "keep it clean" all the time, I have NEVER cussed in front of my children because I have tried to make a concerted effort to eliminate four-letter words from my vocabulary since Lilly Grace repeats everything she hears. In the above mentioned DVD, Emeril Lagasse cooks with Elmo and uses his trademark phrase "BAM" everytime he throws something on the miniature pizzas he is making with the kids. Anyway, Lilly Grace picked up on it, and so now whenever she throws a toy back into the basket she yells "Damn!" because that's how she has interpreted what Emeril does. When I heard her say it, I of course said, "What did you say?" She then proceeded to throw another block into the bucket and yell, "Damn!" I said, "Lilly Grace, you can't say that word...you have to say BAM." Needless to say, she didn't understand and she looked at me again and said, "Damn." Since she couldn't seem to transpose the letter "D" into a letter "B" I told her that she could say "slam" instead. That worked, but now she looks at me when she throws something and says "Slam! Not Damn, Mommy 'cause I can't say that word." I am just waiting to pick her up from the church nursery to hear the nursery worker tell me that my child put her toys back, saying "Slam, not damn, 'cause I can't say that word...I can't say damn." Oh, lordy!