Green’s Dictionary of Slang

ecky n.

(drugs) MDMA.

1991		R.G. Barratt ‘A Tour de Bondi’ in What Do You Reckon (1997) [ebook] [Y]ou can drop some ecky then shoot down to the Bondi and dance to house music.
1994		I. Welsh ‘A Smart Cunt’ in Acid House 193: Naw, speed’s ma drug, speed and ecky.
1999		Indep. on Sun. Real Life 11 July 1: They’re all out of their heads on the ecckies.
2001		RaveSafe South Australia RaveSave.doof.org 🌐 Ecstasy: Also known as Es, eccies, pills, XTC, X, Methylenedioxymethamphetamine (MDMA), biccies, tabs, eggs, googs, vitamin E, essence, adam. Eve, the hug drug, the love drug.
2001		D. Looser Boobslang [U. Canterbury D.Phil. thesis] 65/1: eke (also eeky) n. Ecstasy.
2007		L. Redhead Cherry Pie [ebook] Someone slipped me an eccy.
2012		L. Redhead ‘Grassed’ in Crime Factory: Hard Labour [ebook] We’ve had eccies before [...] And speed. But I like E’s best.
2012		‘First Dog on the Moon’ in crikey,com.au 2 July 🌐 I haven’t even talked about cocaine or eckies or acid and stuff.
2013		T. Black Ringer [ebook] n.p.: ‘Eh, I’m looking for the boy that sells the eccies,’ he goes.
2019		C. Hammer Silver [ebook] Royce has shit for brains. He tried to sell some eccies [...] in the hostel.
2020		G. Armstrong Young Team 78: We’re aw aboot tae take our first ecktos n git right oot our barnets.

In phrases

ecky (up) (v.)

(drugs) to take MDMA.

1995

quote from New Statesman and Society on CJStone.co.uk 🌐 He is an unashamed old hippie – a commune-dweller in the early 1970s, possessor of a Mondragon-type goatee – yet has raved and eckied with the youngest of them in search of continuity between undergrounds then and now.