Top Definition
A very feminine boy, usually with long hair, who spends all his time around girls and is usually overly clever, but not usually gay, just acts like it.
Jack was such a mostyn
by jimmy hartshead February 09, 2007

The Urban Dictionary Mug

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The Urban Dictionary Mug

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The Urban Dictionary Mug

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The Urban Dictionary Mug

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The Urban Dictionary T-Shirt

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