be able to count on one hand

Meaning

1. be able to count sb / sth on (the fingers of) one hand

   used to say that the total number of sb / sth is very small

From the same entry

• …and counting
• count your blessings
• don't count your chickens
• count the cost
• count sheep
• stand up and be counted
• who's counting
• count against
• count down
• count in
• count on
• count out