1 definition by caro mio

A woman who meets at least three of the following five qualities:

1. Between the ages of 35 and 60
2. Is a lesbian
3. Is heavy set
4. Works in various service industries including postal worker, bank teller, plumber, firefighter, construction worker, and/or Wal-Mart greeter
5. Has a short, manly haircut

As a bonus way to identify a Mare, many Mares often enjoy enjoy eating at Ryan's buffet, or "the trough." They can also be spotted wearing sweatpants, plaid, moo moos, and wrangler jeans.

See also: Filly
Kid: "Hey Dad, did Sparky bite that old man who brings our mail again?"
Dad: "No son, that was just a Mare. Her hide is tougher than a thousand sheets of steel."
by caro mio March 1, 2009
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