couple of cans short of a six pack ,ect

[Stroker McGurk]

 

[Sam_Fear]

Not the sharpest crayon in the box.
Drank too much from the stupid tree.
How much stupid did you drink this morning?
How do you do that?.... Turn all you're smarts off?
Rocket surgeon.
Management material.
Superblond.
Sly like a rock.
Not the brightest brick in the box.
A real box of bricks.
One brick shy of a brick.


Can't walk, talk, and chew gum at the same time. - OK, I never say that one, but I did watch a supervisor choke on his gum once because he was trying to walk and talk too. No joke.

 

[Country Misfit]

Those are good. Not playing with a full deck

 

[maverickmk]

I've had that in my signature for a little while now, love that saying

 

[Dirtyrat]

From a movie, the one I like was "Were you born this stupid, or did you take lessons?" (A long kiss goodnight)

 

[Camo King]

City slicker
City slacker

 

[timbo]

My dad always said, He is eat up with the dumb as$.
Tim

 

[39flatback]

Referring to such a person as a "bright spark".

 

[Todd]

Oh that dog just won't hunt

 

[striptnut]

"Dudes runnin on a fouled spark plug"
"That guy aint runnin on all 8 cylinders is he"?

 

[Whyworry]

Dork
Dumber than a fence post

 

[Old Iron]

I Q of 12
3 below plant life

 

[junker39]

Elvis has left the building!!