Definition of over-emote in US English:

over-emote

verb

  • no object To express too much emotion, especially (in a dramatic or musical performance) so as to be unconvincing; to behave in an overemotional manner.

Origin

Early 20th century; earliest use found in The Decatur Review. From over- + emote.

Pronunciation

over-emote

/ˌəʊv(ə)rɪˈməʊt/