tat n 1: tastelessness by virtue of being cheap and vulgar [syn: {cheapness}, {tackiness}, {sleaze}] 2: a projective technique using black-and-white pictures; subjects tell a story about each picture [syn: {Thematic Apperception Test}] [also: {tatting}, {tatted}] tat v : make lacework by knotting or looping [syn: {intertwine}] [also: {tatting}, {tatted}] tatted See {tat}