excessive or irrational devotion to some activity; "made a fetish of cleanliness"
a form of sexual desire in which gratification depends to an abnormal degree on some object or item of clothing or part of the body; "common male fetishes are breasts, legs, hair, shoes, and underwear"
breed animals or plants using parents of different races and varieties; "cross a horse and a donkey"; "Mendel tried crossbreeding"; "these species do not interbreed"