English for Today by Ganiu Abisoye Bamgbose (Dr GAB)
Grammar and Body Organs
He grabbed a towel to cover his ~private part~ (nonstandard).
He grabbed a towel to cover his private parts (standard). The compound word, private parts, is always used in plural form.
You should wash your feet and your ~private~ every day (nonstandard).
You should wash your feet and your privates every day (standard). Privates is an informal word for private parts.
The hormones in the mother’s body affected the baby’s ~genital~ (nonstandard).
The hormones in the mother’s body affected the baby’s genitals (standard).
GAB