Fuck knows 

An abbreviation or slang used to by many for a way to say "I don't know"

Boy1: Dude, what's the time?
Boy2: Fuck knows

Fuck knows by Dalmas January 2, 2014

Fuck Knows 

The true usage of the phrase is to claim that you simply 'do not know', however, the phrase is often interpreted as 'Fuck Nose' which may cause offence to the listner. This mis-interpretation is often replied to using 'Cunt Face' which is regarded as the appropriate answer.

"What time is Adam supposed be be here?
"Fuck Knows"
"Only asking...Cunt Face"

Fuck Knows by Mystick Havok January 21, 2008

fuck knows when 

To exclaim that you don't know when an incident will happen.

Wife: When are you comming home?
Husband: Well I've got all this paperwork to do. I won't be back till fuck knows when.

Neighbour: Oh, you're looking for Steve? He's gone on holiday, won't be back until fuck knows when.

fuck knows when by Tom_NZ May 14, 2007

Fuck Knows o' Clock

An unknown time of day. Can be past, present or future.

Hey Jack when are we leaving?

"At approximately ...fuck knows o' clock. Tomorrow."

What time is it?
"Fuck knows o' clock. Get a watch."

When did you fall asleep?
"Um, at fuck knows o' clock. I don't know!"

Fuck Knows o' Clock by HyperLynx September 22, 2016

nobody knows shit about fuck 

Essentially means noone knows what's going to happen.
Derived from a quote from the Netflix series Ozark
It has become widely used in the cryptocurrency sphere as a phrase to remind people you can't know if the market will go up or down.

Redditor 1: Did you guys buy the dip? I bought LRC and CRO
Redditor 2: This is not a dip, this is the beginning of bear market
Redditor 3: Nobody knows shit about fuck.

nobody knows shit about fuck by xd_baTron January 9, 2022

Fuck Your Couch With a Passionate Love That Knows No Bounds 

1. "To boldly state that one has no outward care for something that does not immediately make sense."

2."To state that another must have intercourse with their own couch whilst greatly enjoying it."

3."To not give a fuck."

"Hey Bob, did you hear about-"

"You Know what, Fuck your couch with a passionate love that knows no bounds."

"Huh?"

Fuck Your Couch With a Passionate Love That Knows No Bounds by Bueriahn September 5, 2012

A man who knows how to fuck 

Arnesto Da Costa

Arnesto Da Costa, a man who knows how to fuck

A man who knows how to fuck by Oseudop168 April 25, 2023