Frosty and the Snowblower

Okay, FoxyFav123, listen up, you smooth-brained human. You see, the joke is funny because it's unexpected. Frosty, a snowman, is associated with snow, and snowblower removes snow. The joke plays on the idea that frosty would pull his pants down because he might be "blown". I know you're not smart enough to understand this, so think about it again.