What is Impostor?
1.
Someone who pretends to be someone else, usually in a serious setting, where the impostor is doing some sort of damage
That surgeon who did Jane's tonsilectomy? Turns out, he was an impostor. He had a real job as an orderly in the hospital, but he was really good at
snowing people andhacking computer records. They've got himlocked up and his two wives are trying tobail him out.
See