artist

(rip-)off artist

Inf. a con artist. Fred is such an off artist. Beware of the rip-off artist who runs that shop.

take-off artist

Sl a thief. (Underworld.) A take-off artist known as the Cat is cleaning out closets and jewelry boxes all over town. He's not a sales agent. He's a takeoff artist, pure and simple.

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a piss-artist 

1. (British & Australian informal) someone who tries to make people believe they have knowledge about a subject, but who really does not know much about it Those so-called multi-media consultants were just a bunch of piss-artists.

2. (British & Australian informal) someone who is often drunk He's a nice enough bloke but he's a real piss-artist.

be an [artist/patriot/professional/etc.] to your fingertips

if you say that someone is an artist, patriot, professional etc. to their fingertips, you mean that they behave in a way which is completely typical of such a person, and it is the most important part of their character Mark, a professional to his fingertips, insisted that we should make proper joints, not simply nail the pieces of wood together.

See also: fingertip