|1.||an artificial head of hair, either human or synthetic, worn to disguise baldness, as part of a theatrical or ceremonial dress, as a disguise, or for adornment|
|—vb , wigs, wigging, wigged|
|2.||obsolete to furnish with a wig|
|3.||slang (Brit) to berate severely|
|[C17: shortened from |
In addition to the idiom beginning with wig, also see flip one's lid (wig).