A girl who behaves in a way that is perceived to be stereotypically boyish or masculine.
noun
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Origin of tomboy
First attested in 1553 when it originally meant a “boisterous boy", later in 1579 when it came to mean an “immodest woman", and then finally in 1592 it developed its modern meaning of a “girl who acts like a boy"; from Tom, familiar form of Thomas + boy, “male child".
From
Wiktionary
Tomboy Sentence Examples
Another famous mare was Manganese (1853) by Birdcatcher from Moonbeam by Tomboy from Lunatic by the Prime Minister from Maniac by Shuttle.
She plays a tomboy who thinks she is in love with Lt Danny Gilmartin, well played by Stephen Brennan.
She was a solitary little tomboy, living in her own world and talking out loud to herself.