dodgy cunt

A dodgy cunt is somebody who would otherwise happily engage into something when it is in favor of them, but under the circumstance that it is NOT in favor of them, will avoid whatever it is at all costs, usually pretending like whatever it is is suddenly getting redundant.

Terry: When I called Johnny out on being such a hypocrite, he started to claim the entire discussion was getting redundant, when HE brought it up in the first place.

Jim: Wow, what a dodgy cunt.