boy-girl adjective 1noun 1forms 1 adjective1 •Characterized by stereotypical romantic relationships between young people.And then one reviewer said that it was your average boy-girl song and the writer didn't understand why people were making such a big deal out of it. — 2006 noun1 •Someone who has characteristics of both boys and girls; someone young and androgynous.Baudelaire is uninterested in boy-girls or transvestites. His androgynes must be voluptuously female in body contour. — 1990 formsboy-girls