be (as) thick as a brick

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

Common Names:

Name	Pronounced	Usage
Arness	['a:nəs]
JÔNatas	-	Portuguese
Herodotus	-	Ancient Greek (Latinized)
Phineas	FIN-ee-əs (English)	Biblical
Farooq	-	Arabic
Ashtoreth	-	Biblical, Near Eastern Mythology