have sexual intercourse with
"This student sleeps with everyone in her dorm"
"Adam knew Eve"
"Were you ever intimate with this man?"
Fuck (the taboo swear word, but not in the sense "to copulate")
"It is difficult to eff my gratitude when such kindness comes as a surprise."
To put into words; to express.
In plain English: To eff means to curse someone by using a bad word instead of saying their name.
"He decided to eff his way through the exam by guessing randomly instead of studying."
Usage: Use this informal verb when you need to describe expressing an idea or feeling without using explicit profanity. It functions as a milder alternative for contexts where direct swearing is inappropriate, such as in casual conversation with children or in professional settings requiring discretion.
Initialism of Electronic Frontier Foundation.
"After reading about EFF's stance on digital privacy, I decided to join their newsletter."
The word "eff" is a slang term that originated as a euphemistic way to refer to the F key on a keyboard without saying its explicit name. It emerged in American English during World War II when soldiers needed a discreet method for typing profanity, following a similar pattern used by other service members who coined terms like "pee.