(one's) elevator doesn't go all the way to the top

(one's) elevator doesn't go all the way to the top

A pejorative phrase meaning one is not very intelligent or of questionable mental capacity. He says he's going to start a business selling bees as pets. I'm starting to think his elevator doesn't go all the way to the top.
See also: all, elevator, go, top, way
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
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