I saw Mommy kissing Santa Claus Underneath the mistletoe last night She didn't see me creep Down the stairs to have a peep She though that I was tucked up in my bedroom fast asleep Then I saw Mommy tickle Santa Claus Underneath his beard so snowy white What a laugh it would have been If Daddy had only seen Mommy kissing Santa Claus last night. I saw Mommy kissing Santa Claus Underneath the mistletoe last night She didn't see me creep Down the stairs to have a peep She though that I was tucked up in my bedroom fast asleep Then I saw Mommy tickle Santa Claus Underneath his beard so snowy white What a laugh it would have been If Daddy had only seen Mommy kissing Santa Claus last night.