meaning
To believe that one has made an important discovery when, in fact, it is imaginary, mistaken, or based on a misunderstanding. The expression refers to something that does not exist, since mares do not build nests.
expression
meaning
To believe that one has made an important discovery when, in fact, it is imaginary, mistaken, or based on a misunderstanding. The expression refers to something that does not exist, since mares do not build nests.