count on one hand

count on one hand (third-person singular simple present counts on one hand, present participle counting on one hand, simple past and past participle counted on one hand)

1. Synonym of count on the fingers of one hand

• “you can count something on the fingers of one hand” (US) / “you can count something on the fingers of one hand” (UK) in Macmillan English Dictionary.
• “could count sth on the fingers of one hand”, in Cambridge English Dictionary, Cambridge, Cambridgeshire: Cambridge University Press, 1999–present.