The DICT Development Group

  45 Moby Thesaurus words for "testicles":
     bag, ballocks, balls, basket, beard, breasts, cervix, clitoris,
     cod, cods, cullions, family jewels, female organs, genitalia,
     genitals, gonads, labia, labia majora, labia minora, lingam, lips,
     male organs, meat, nuts, nymphae, ovary, penis, phallus,
     private parts, privates, privy parts, pubic hair, pudenda,
     reproductive organs, rocks, scrotum, secondary sex characteristic,
     sex organs, spermary, testes, uterus, vagina, vulva, womb, yoni