be (as) thick as a shit

?Note: This page may contain content that is offensive or inappropriate for some readers.

be (as) thick as a shit

vulgar slang To be remarkably stupid, dimwitted, or obtuse. Primarily heard in UK. I smoked a lot of marijuana when I was in high school, so I was as thick as a shit by the time I finally graduated. Jen's new girlfriend is very nice, but she's thick as a shit.

See also: shit, thick

Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.