- a simple past tense and past participle of light1.
- Slang. under the influence of liquor or narcotics; intoxicated (usually followed by up).
Origin of lit1
- drugged, esp on heroin
Word Origin and History for lit up
from past participle of light (v.2). Slang meaning "drunk" is recorded from 1914.
colloquial shortening of literature, attested by 1850.
"color, hue, dye," early 12c., from Old Norse litr "color," from Proto-Germanic *wlitiz (cf. Old English wlite "brightness, beauty," Old Frisian wlite "exterior, form," Gothic *wlits "face, form").