fall between two stools

Meaning

1. to fail to be or to get either of two choices, both of which would have been acceptable

From the same entry

• a day, moment, pound, or two
• in two
• in twos and threes
• it takes two to do
• not have two beans, brain cells, to rub together
• put two and two together
• that makes two of us
• two sides of the same coin
• be in two minds about doing
• in two shakes