A misinterpretation, misquote, or mispronunciation of an English word or phrase by a person with English as a second language, especially with a Persian background.
Noosh "Hey Mikey, you can work on your hip trusts."
Mike "Hip trusts…what are you talking about….oh…you mean hip thrusts…You really Nooshed that one"
A person who is usually described as, 'stupid', 'annoying', 'clueless'; related to the noun, 'Tool'. A noosh can be a male or female. A Noosh will tend to be immature.