overacting

v. do something in an exaggerated manner; play a role in an exaggerated manner, overdramatize

Overacting (or hamming) is the exaggeration of gestures and speech when acting. It may be unintentional, particularly in the case of a bad actor, or be part of the role. For the latter, it is commonly used in comical situations. Since the perception of acting quality differs between people the extent of overacting can be subjective.
See more at Wikipedia.org...

Noun
1. poor acting by a ham actor
(synonym) hamming
(hypernym) acting, playing, playacting, performing
(derivation) overact, ham it up, ham, overplay

Verb
1. exaggerate one's acting
(synonym) ham it up, ham, overplay
(antonym) underact, underplay
(hypernym) act, play, roleplay, playact
(derivation) hamming, overacting
(classification) dramaturgy, dramatic art, dramatics, theater, theatre

GIGIONISMO. ENFASI GIGIONESCA. GIGIONESCO. ESAGERANDO. STRAFANDO