Definitions

1. adverb

in a position of being bent or folded back, with the arms or legs hanging loosely; in a careless or slovenly manner

“She stood akimbo, leaning against the wall with her arms folded.”

2. noun

a position in which the arms or legs are bent or folded back, with the hands or feet hanging loosely

“The child was playing with his arms akimbo, pretending to be a superhero.”