Nudge Nudge Wink Wink Meaning

(idiomatic) A phrase added at the end of the sentence to hint that the speaker is referring to something else, euphemistically.

Example: 1971 "Nudge Nudge" from Monty Python's Flying Circus
  Is, uh,... Is your wife a goer, eh? Know whatahmean, know whatahmean, nudge nudge, know whatahmean, say no more?
  Anyway, the reason I didn't answer the door was because I was busy in bed, nudge nudge wink wink.