オレっ娘
Meanings
1
girl who uses 'ore'
Manga/anime slang for a young female character who refers to herself with the masculine first-person pronoun 俺 (ore), often implying a tomboyish or tough personality.
See also: 俺 (おれ)
That orekko character uses 'ore' for herself and has a boyish personality.
In recent manga, orekko heroines often appear.