crackbrain

crackbrain

Someone who is wacky or crazy. There's a guy on our corner who shouts about the end of the world; I think he's a crackbrain.

crackbrained

Wacky or crazy. There's a guy on our corner who shouts about the end of the world; I think he's a little crackbrained. Oh please, that'll never work—it's a crackbrained idea.

See also: crackbrain

crackbrain

n. a fool; a stupid oaf. Did you hear about the crackbrain who said he found part of the sky floating in the lake?

crackbrained

mod. stupid; ridiculous. I’ve heard enough of your crackbrained schemes.

See also: crackbrain