something tacky is somthing you turn your nose up at, unless your a tramp, it is usually cheap, breakable, and not worth alot. townies look tacky most of the time, wearing plastic soverign lookalikes 20p from that machine in the chippy.(now thats tacky!)
"omg, did you see that skirt she bought? soooo tacky!"
A popular playground manouevre in Liverpool. Tackying is the act of rubbing one's hand on arse-crack, grundle and ball-bag before rubbing it in somebody's face. the Tacky is a punisnment reserved for only the worst of playground Knob-shines
A typical situation in which a Tacky would be administered:
"did you hear what Smigger was saying about your ma?"