When your girl/guy best friend see's a guy/girl who looks worse than you. You Nudge Nudge him/her which is an action done with your elbow slowly hitting theirs to signify that you ship them with an uglier person so they know your worth
East coast term used to identify a police officer, the term 'nudge' is used as a form of street code to alert people of a police officer's presence without tipping off the officer that any wrong-doing is going down.
When I grow up daddy, I want to be a nudge just like you.
It's a tough job being a nudge, but someone's gotta do it.
To nudge, v.
To draw someone's attention to oneself, usually using means that are annoying to that other person, for example by repeatedly hitting them with one's arm, or using software functions that vibratewindows and play annoying sounds.
Eh? Eh? Wink, Wink, Nudge, Nudge, Say no more, Say no more. (Monty Python's Eric Idle character in the Nudge Nudge sketch)