slow reflexes; bad at sports; unathletic person
Colloquial abbreviation of 運動音痴. Used to describe someone who is clumsy, has poor motor skills, or is generally bad at physical activities. Can be self-deprecating or teasing.
See also: 運動音痴
I'm so unathletic, I'm terrible at ball games.
She's clumsy and often trips.
Abbreviation of 運動音痴 (undō onchi), literally 'exercise tone-deafness', from 運動 (exercise) + 音痴 (tone-deaf, lack of sense).