"The hypothalamus plays a major role in the regulation of basic drives related to survival, including the so-called "four F's":fighting, fleeing, feeding, and mating."
--Wayne Weiten's textbook Psychology: Themes and Variations

How are fighting, fleeing, feeding, and mating the four F's? ...wait...ohhhh...

tom-which f didja get to?
pete-F?? what?
tom-you knoww, the four f's!
pete--oh yeah dayum i forgot! um, yeah we didnt.
tom-loser.

"Got the the four F's?
"No man, there's no girls to hit on."
"What are you talking about? I meant friends, family, foods, and football! Tomorrow is the Superbowl!"

Tommy: "Yo Jimmy, have you heard of The Four F's?"
Jimmy: "Nah man, what are The Four F's?"
Tommy: "It's the code the White Man lives by, The Four F's are:
Find Em'
Feel Em'
Fuck Em'
Forget Em'"
Jimmy: "Isn't that a little rude to do to a girl?"
Tommy: "Nigga-Please."
Jimmy: "Ahh cool Tommy, that advice should be helpful, Nigga-Thankyou."