Green’s Dictionary of Slang

emo n.

(teen) one who displays their emotions; also as adj.

J, Lanier You Are Not a Gadget 53: [L]ists of people who are, say, emo, single, and affluent.
www.verywellfamily.com/a-teen-slang-dictionary 10 Mar. 🌐 Emo - Emotional or a drama queen.

In phrases

give someone the emos (v.)

(Irish) to have an emotional effect on someone .

[Ire]L. McInerney Glorious Heresies 323: ‘I was up with my dad earlier. You know how it goes. He gives me the emos’.