adam's fig
/ˌadəmz ˈfɪɡ/(also Adams fig, Adam's fig, Adam fig)
noun
South African. Now usually in form Adam fig. A variety of the common fig tree, Ficus carica, grown in South Africa, having large brown fruit (more fully Adam fig tree).
Origin
Early 17th century (in an earlier sense). In some forms from the genitive of the name of Adam + fig. In some forms from the name of Adam + fig. With allusion to the biblical story of the Fall in Genesis 3:6.