lit up

adj — 3 senses

lit up

adj

1

Illuminated.

On the other hand, to arrive after dusk, when the multitude of garish little public-houses are lit up, giving glimpses of crowded jostling bars and taprooms, is an introduction to a fine city well calculated to affect even the most nonchalant.1951 October, R. S. McNaught, “Lines of Approach”, in Railway Magazine, page 703:

2

Slang Exhilarated, excited; showing signs of emotion.

You wondered what she would be like when she was lit up. Excited, I mean; not tight.1998, Josephine Tey, The Franchise Affair, page 97:
2005, Jim Greer, James Greer, Steven Soderbergh, Guided by Voices: a brief history I don't know if Bob remembers the whole thing either; he was pretty lit up.

1 more example

2010, Jeff Somners, The Terminal State Her thin, pretty face was lit up with an ancient sort of rage.

3

Slang Under the influence of alcohol or drugs, intoxicated, buzzed.

Synonyms: lighted, luminous, ebullient, thrilled, worked up
Derived terms: lit up like a Christmas tree

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.