Green’s Dictionary of Slang

tense, over-emotional, ‘wired’.

1873		J. Mair Hbk of Phrases 107: Hyper, to be busy.
1942		Berrey & Van den Bark Amer. Thes. Sl.
1967–8		Baker et al. CUSS 141: Hyper Eager for or looking forward to something or someone.
1977		C. McFadden Serial 14: Rapping at her in this very hyper way about how he was into corporal punishment.
1981		M. Baker Nam (1982) 223: There isn’t anything wrong with you, man. You’re just a little hyper and over-anxious.
1992		D. Jarman diary 8 Aug. Smiling in Slow Motion (2000) 186: Derek arrives, hyper, after seeing off a schoolteacher with her roaming terrier dog which had killed his gorgeous cat Baby.
2000		in W. Shaw Westsiders 81: Just out of Rykers I’m a lyrical sniper / Everytime you rhyme I just get hyper.
2007		T. Dorsey Hurricane Punch 5: It’s how my parents bribed my hyper little butt from running around the house.
2010		K. Richards Life 263: I was so hyper all the time that I needed to suppress myself.
2015		G. Disher Heat [ebook] The man was hyper, the litle eyes in his round face shooting sparks of gleee.
2016		A. Wheatle Crongton Knights 65: Bit was all hyper, chatting really fast.
2020		G. Armstrong Young Team 16: Every wan ae us is hyper. The caffeine in the wine has done its job.