n. A word used to insult somebody, means basically the same as kunckle head. Knuckle-head is to knuckles in your head, as chuckle-butt is to chuckles in your butt. Can also mean one who farts a lot.
Example 1-
Daughter who is texting her friend on her cell: Daddy, my friend just said i was stupid!
Father: Well, call her a chuckle-butt
Example 2-
Girl-Ew, Chris is such a chuckle-butt Other girl-Tell me about it. Earlier in math class he blew one right in my face!
Toothless hill billy from Vermont. Expression used by townies to describe rural Vermonters indicating a lack of intelligence, personal cleanliness, grace, social skills and of course teeth.
I can't believe she is dating that chucker, his breath smells like a dead moose.