girl – Wiktionary

Of the 100 percent total, 25 will have two girl genes, 50 will have one boy and one girl gene, and 25 will have two boy genes. 1972, GSN Gesneriad Saintpaulia News: African Violets, Gloxinias, Other Gesneriads and Exotic Plants: When there are two “girl” genes the plant is a girl dwarf. A boy or man who is weak or sentimental.

https://en.wiktionary.org/wiki/girl