Definition of as thick as a brick in English:

(as) thick as a brick

Very stupid.
More example sentences
  • It's like meeting a really handsome bloke and finding out he's thick as two short planks when he opens his mouth.
  • A person can be very good at reeling off facts and figures but can still be as thick as two short planks.
  • Generally, I like ads that don't assume I'm as thick as two short planks and present themselves in a clever and/or funny way.
See parent entry: thick

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Word of the day flagitious
Pronunciation: fləˈdʒɪʃəs
adjective
(of a person or their actions) criminal; villainous