for unlawful carnal knowledge 

Van Halen's Album released in 17 June 1991

for unlawful carnal knowledge is a great album

for unlawful carnal knowledge by binfordman June 15, 2008

For Unlawful Carnal Knowledge 

A euphemistic way of referring to taboo sex (outside of marriage, adultery, homosexuality, sodomy, etc.), this phrase is often used as a false etymology for the word "fuck"
Also, Van Halen's 1991 album

I remember coming home and getting slapped by my dad for unlawful carnal knowledge, apparently he found out my "roomate" and I were actually dating

For Unlawful Carnal Knowledge by Whythisword October 16, 2022

For Unlawful Carnal Knowledge 

A Word That Comes From Colonial Times
'For Unlawful Carnal Knowledge'
In Other words it was abbreveated to "FUCK"

You Have Been Put To Death 'For Unlawful Carnal Knowledge'

For Unlawful Carnal Knowledge by fred yasdfasdfasfadffas August 18, 2006