"fly" Definition

  1. knowing, wide-awake, fully understanding another’s meaning.
  2. TO BE ON THE, to be out for a day’s drink or pleasure.
  3. to lift, toss, or raise; “FLY the mags,” _i.e._, toss up the halfpence; “to FLY a window,” _i.e._, to lift one for the purpose of stealing.

More About fly

Position in the dictionary: 1300 of 4022 slang words.
Next words in the dictionary: fly the kite, fly-boys, flying mare, flying mess, flying stationer, flymy, fobbed, fogey, fogger, foggy
Previous words in the dictionary: flutter, flush, flunkeyism, flunkey, flummuxed, flummux, flummery, fluke, fluff it, fluff

The Slang Dictionary's Entry for fly

Read The Slang Dictionary's historical definition of the slang word "fly" on this page. Also learn other useful information about "fly", including the position in the dictionary and the next and previous terms to be discovered.