not the brightest crayon in the box

Not particularly intelligent; dim-witted or prone to stupidity. Her new boyfriend doesn't seem like the brightest crayon in the box, but he's pretty good-looking! I wasn't the brightest crayon in the box when I was in school, but I still managed to find a profession I loved.

See also: box, bright, crayon, not

See also:

be not the brightest crayon in the box
crayon
not the sharpest tool in the shed
not the sharpest pencil in the cup
not the sharpest knife in the drawer
not the brightest candle
not the sharpest tool in the box
smurfbrain
couldn't find (one's) way out of a paper bag
(one's) way out of a wet paper bag

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