Epitheton (e-pith’-e-ton): Attributing to a person or thing a quality or description-sometimes by the simple addition of a descriptive adjective; sometimes through a descriptive or metaphorical apposition. (Note: If the description is given in place of the name, instead of in addition to it, it becomes antonomasia or periphrasis.)
Donald Trump is an adolescent in grownup’s clothing.
Somebody should get President Trump a fidget spinner, a pair of black hi-top Converse sneakers, “Grand Theft Auto V,” and a vape pen.
Definition courtesy of “Silva Rhetoricae” (rhetoric.byu.edu)