Green’s Dictionary of Slang

(drugs) a form of marijuana grown in Thailand, soaked in hashish oil and sold tied around a thin stick resembling a satay skewer.

1976		Times 14 Aug. 2: A customs and Excise officer, Mr Roderick Marr, said two parcels were opened at the overseas mail office and found to contain photograph albums packed with thai sticks, a form of cannabis.
1977		A. Brooke Last Toke 132: A taste of ti-stick that still hung – its acrid smell obvious – in the cloud near the ceiling.
1981		J. Wambaugh Glitter Dome (1982) 84: Someone had crept into the men’s restroom and unloaded Captain Woofer’s tamped and loaded briar, reloading it with very high grade hashish or Thai stick.
1992		T. Williams Crackhouse 147: blunt – cigar with most of the tobacco removed, refilled with cocaine and marijuana (coke blunt) or sinsemilla, Thai, indica, or other high-grade marijuana (buda blunt).
1999		T. Dorsey Florida Roadkill 150: One day it’s meth, another day psilocybin [...] Then it’s Thai sticks.
2000		Guardian Rev. 18 Mar. 3: A few giggly puffs of a Thai stick.
2001		D. Looser Boobslang [U. Canterbury D.Phil. thesis] 188/1: thai stick n. a small amount of ‘thai grass’ [...] tied to a stick, and sometimes dipped in marijuana oil.
2002		J. Ellroy ‘Where I Get My Weird Shit’ in Destination: Morgue! (2004) 42: We toke Thai stick and talk.

(US drugs) dianabol, a form of methamphetamine.

2001		Interpol 13th International Forensic Science Symposium 🌐 Methamphetamine use continues to increase with the introduction of ‘Thai tabs’ from Southeast Asia.
2004		Microgram Bulletin XXXVII:1 5: 🌐 The Source Determination Program of the DEA Special Testing and Research Laboratory (Dulles, Virginia) recently received some ‘Ya-Ba’ tablets (also known as ‘Thai Tabs’) heatsealed in what appeared to be plastic drinking straws.

(drugs) a variety of heroin, refined in Thailand.

1997

L. Davies Candy 8: It’s not all that heavily refined — it’s not the Thai white or even pink rocks.