- slightly crazy
- confused; befuddled
- Consisting of or having many loops: loopy handwriting.
- Crazy or eccentric: “March was the month when most people went loopy, like the March hares” (Edna O'Brien).
- Offbeat or bizarre: “the loopy energy of Harpo Marx” (Michael Wood).
- Befuddled or disoriented: felt loopy from dehydration.