lid-proppers, n. — Green’s Dictionary of Slang

lid-proppers n.

also lid-poppers

[they keep one awake, and ‘prop up one’s eyelids’]

(drugs) amphetamines.

1969		R.R. Lingeman Drugs from A to Z (1970) 142: lid poppers amphetamines.
1971		E.E. Landy Underground Dict. (1972) 120: lid popper [...] Amphetamine.
2001		ONDCP Street Terms 14: Lid poppers [...] Lid proppers — Amphetamine.