be able to count (someone or something) on one hand
An expression used to emphasize that something is scarce, lacking, or rare. I don't know what classes to sign up for next semester. I could count the number of ones I'm actually interested in on one hand.
be able to count (someone or something) on the fingers of one hand
An expression used to emphasize that something is scarce, lacking, or rare. I don't know what classes to sign up for next semester. I could count the number of ones I'm actually interested in on the fingers of one hand.