The truth is that anyone in the world could impersonate me, and there is little I can do about it.
A lonely young woman gets drawn into an online forum and is asked to impersonate someone else.
Say one thing for former Illinois governor Rod Blagojevich, he certainly has the right hair to impersonate Elvis.
1620s, "to invest with a personality," from assimilated form of Latin in- "into, in" (see in- (2)) + persona "person." Sense of "to assume the person or character of" is first recorded 1715. Earlier in same sense was personate (1610s). Related: Impersonated; impersonating.