Green’s Dictionary of Slang

1. (drugs) colourful incandescent paths in the air, ‘seen’ in the wake of moving objects by those who have taken hallucinogens such as LSD [the SE vapour trails produced by jet aircraft].

2001

ONDCP Street Terms 21: Trails — Cocaine; LSD induced perception that moving objects leave multiple images or trails behind them.

2. (US rugs) cocaine [var. on line n.¹ (5e)].

2008

Post-Star (Glen Falls, NY) 3 Aug. 18/5: There are many slang terms for cocaine [...] big C, blanco, blast, [...] girl, heaven, Mama Coca, [...] pimp, she [...] toot, trains, stardust.