halfway crook
A poser. Someone who professes to live one style of life but reality tells a much different story.

Used as a diss in freestyleraping to describe someone who claims to be a thug or hard but is very much the opposite.
Guy 1- "Yo', Ja Rule is the realest nigga representin' the streets!"
Guy 2- "Hell no he ain't! He's a halfway crook"