Green’s Dictionary of Slang

a tantrum, an outburst of bad temper; thus as adj. ill-tempered.

1977		S. Kernochan Dry Hustle 30: My face is the hollow-eyed mask of prostitutes. Below all is voodoo. Fantastic tantrum. Hissy-fit.
1979		(con. 1949) J. Hurling Boomers 66: Old Brass Balls would throw a hissy if Ah showed up with a beard.
1993		Tarantino & Avery Pulp Fiction [film script] 56: If you’re through havin’ your little hissy fit, this chick is dyin’.
2003		G. Tate Midnight Lightning 44: All were floored when not slayed when not sent into jealous hissy fits by Hendrix’s skill.
2005		E. Weiner Big Boat to Bye-Bye 31: ‘It was Marc Cohen throwing the biggest hissy of all time’.
2009		P. Temple Truth 68: You don’t get hissy and I promise to be more inclusive.
2016		email to http://languagelog.ldc.upenn.edu 8 Sept. 🌐 it quickly became apparent that it was really their hired writers who were having their own p.r. hissy fit.