The definition of look a gift horse in the mouth is:
(proverb) find a problem with a gift that you have been given
A: Happy Birthday, here’s your new car.
B: Dad, it’s the wrong colour! I hate red! I wanted a blue car!
A: Don’t look a gift horse in the mouth you ungrateful girl!
When Jessica’s father died, she received $5000.00. When she told her mom that she wanted more, Jessica’s mom told her that she shouldn’t look a gift horse in the mouth, and that she should be thankful for the money she got.
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