ˈluːpiːɪst

Definitions

1. adjective

extremely crazy or foolish; most erratic or unpredictable

“She was the loopiest person in the room, dancing uncontrollably to the music.”

2. adverb

in an extremely crazy or foolish manner; in the most erratic or unpredictable way

“He drove through the city in the loopiest way possible, ignoring all traffic lights.”