a clever dick

a clever dick

  (British & Australian)
someone who tries too hard to show that they are clever, in a way which annoys other people He's such a clever dick, talking loudly on the phone in lots of different languages.
See also: clever, dick
References in periodicals archive ?
Drinks industry group Mature Enjoyment of Alcohol in Society (MEAS) yesterday launched a campaign with the message Be a Clever Dick - Designate a Driver.