Green’s Dictionary of Slang

(drugs) barbiturates, esp. Tuinal.

1969		R.R. Lingeman Drugs from A to Z (1970).
1977		B. Davidson Collura (1978) 82: We dropped these Tuies, man, and we jumped in bed, and man, she was as foxy as ever.
1981		D.E. Miller Bk of Jargon 339: tooies: Tuinal.
2001		ONDCP Street Terms 21: Tooles [...] Tuie — Depressants.
2001		D. Looser Boobslang [U. Canterbury D.Phil. thesis] 191/1: tooie n. a Tuinal capsule.