'gimmick' definitions:

Definition of 'gimmick'

From: WordNet
noun
A drawback or difficulty that is not readily evident; "it sounds good but what's the catch?" [syn: catch, gimmick]
noun
Something unspecified whose name is either forgotten or not known; "she eased the ball-shaped doodad back into its socket"; "there may be some great new gizmo around the corner that you will want to use" [syn: doodad, doohickey, doojigger, gimmick, gizmo, gismo, gubbins, thingamabob, thingumabob, thingmabob, thingamajig, thingumajig, thingmajig, thingummy, whatchamacallit, whatchamacallum, whatsis, widget]
noun
Any clever maneuver; "he would stoop to any device to win a point"; "it was a great sales gimmick"; "a cheap promotions gimmick for greedy businessmen" [syn: device, gimmick, twist]

Synonyms of 'gimmick'

From: Moby Thesaurus