carrot-dangler 

A person that makes plans, or promises something and then does not follow through.

We made plans to go out again and at the last minute she cancelled. She is such a carrot-dangler!

carrot-dangler by K'Real February 16, 2006

Carrot Dangle 

The male equivalent to the ever fascinating woman's side-boob.

Jeez you guys, did you see Dane's carrot dangle today?

Carrot Dangle by Sam Howat April 10, 2012

bit the dangled carrot 

Used in online gaming. Upon winning a game after losing many matches you log out immediately. This leaves the guy online annoyed after losing only once and with no opportunity for redemption.

I was playing Need For Speed on PS3 losing every time. After 10 games, I finally "Bit the Dangled Carrot!"

bit the dangled carrot by RipperCLT February 21, 2014