- noun a look, glance. A word that probably originated in the jargon of tramps, taken from the Romany word for ‘look’, dik, in the late 19th century. British soldiers overseas also encountered the Hindustani version dekko. The word is now less popular than in the 1950s but is still heard in the phrase ‘take/have a dekko (at)’. The word is not unknown, but is rare in American slang, where it has been recorded as ‘decko’.