hashy, n. — Green’s Dictionary of Slang

hashy n.

(UK drugs) hashish.

1941		V. Davis Phenomena in Crime 96: There are many reasons to explain the ‘hashy’ boom.
1971		R. Woodley Dealer 61: ‘Best high in the world for me is coke and reefer. [...] Or better still, good coke and good hashy’.

hashy fag (n.) [fag n.³ (2)]

(UK drugs) a cigarette blending tobacco and hashish.

1941

V. Davis Phenomena in Crime 98: They pick up the ‘hashy fags’ from unscrupulous seamen.