What is Chucklehead?
1.
Some clown who takes nothing seriously.
That chucklehead insists that Einstein was an imaginary person like God.
2.
a blockheaded bonehead moron
Shut up you chucklehead. Boy, Bob sure is a chuckleheaded idiot. He's so stupid he forgot to friggin shut up his face
3.
A person of moronic stature, generally a new boyfriend of your ex-girlfriend that you find to be a total idiot.
Yeah, she's dating some new guy that sells Saturn's. He's a chucklehead.
See
4.
Someone who laughs at own jokes in order to get others to laugh along with them. Usually these are clownish characters many find unfunny.
"Boy that Jay Leno sure is a chucklehead! That last bit was not even funny and he's chuckling, bouncing his head around like a moron"
See
5.
some clown who takes himself seriously
Elias is such a chucklehead, I wish he would just shut up.
See