Top Definition
A bigirl is a girl or woman who can be romantically involved with males and/or females, depending on the person. It is a distinct, sexual orientation that does not eliminate dating or relationship options based on gender.

The term "bigirl" was popularized by the bisexual women's social site USBiGirls.com.
Mary recently broke up with her boyfriend Tom. Now she is dating Kelly, and the two girls are very happy together. Mary is a bigirl.
See also bisexual woman, bi girl
by RachelWells December 29, 2011

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