Slang for "prostitute" in Victorian times was "blowsy" and slang for "ejaculation" was "blow" leading to the current phrase "blow job".
The G in 'g-string' stands for groin.
'Buksvåger' is a Swedish word for a person who has had sex with a person you've already had sex with.
'Frigging' was originally Middle English slang for masturbation.
Narcissism meaning someone who has excessive or erotic interest in oneself and one's physical appearance.
The word stems from the Greek God 'Narcissus' who was a heartbreaker and was cursed by the gods to fall in love with his own reflection.
The common female equivalent for "morning wood" is "morning dew".
7UP got it's name from being 7 ounces.
UP was slang for bubbles way!
In France, a megabyte is called a 'mega-octet' because 'byte' means 'cock' and 'megabyte' is unintentionally rude.
The word 'nothing' was an Elizabethan slang term for 'vagina'.
A man's testicles manufacture 10 million new sperm cells a day.