kiasuPronunciation: /ˈkiːəsuː/ SE AsianDefinition of kiasu noun a grasping, selfish attitude: I should have gone two hours earlier: the kiasu in me is growing adjective (of a person) very anxious not to miss an opportunity; grasping. Origin:from Chinese, 'scared to lose'kiasu in other Oxford dictionaries Definition of kiasu in the US English dictionary