be (as) thick as a shit
(redirected from being thick as a shit)Note: This page may contain terms or definitions that are 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.