A sexual encounter that is over the top and extremely memorable for any number of reasons.
Duder 1: "Yo dude did you see the girl I went home with last night?"

Duder 2: "Yeah boi! She was so hot."

Duder 1: "Well anyway, I get to her place and we start making out. Then, her roommate comes home, who is f*cking smoking hot by the way, and she joins in! I railed both those sweet asses for like 3 hours!"

Duder 2: "Holy shit! That's one epic fuck doggy! I bet that'll be #1 in your spank bank for a long time."
by westfalia October 6, 2010
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Grossly oversized quantity.
Unfathomable in most circumstances.
"I love you an epic fuck tonne Richard"
"Charlene drank an epic fuck tonne last night"
by Team Charchie February 27, 2017
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You awake at 4:00 am and it's the most amazing sex you ever had.
My boyfriend, wakes me up for the 4:00 am Epic Fuck. It leaves me the next day thinking about it.
by Amazing Amy October 16, 2014
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Epic on a greater level- something that is so awesome it deserves the word 'fucking' infront of it- and epic meaning, "heroic; majestic; impressively great"

"Girl, your fuckng epic!"

"That stunt was fucking epic!"
by Karissa Pukas April 9, 2007
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