Something one male, usually but not necessarily in the 15-45 age group, is wont to say to another male, when they are pleased, or are affirming their choice, feelings, experience, results, or the turn of events in general. 'Fuck' being an emphasiser. Occasionally spoken accidentally to a female, which becomes more comical in effect.
""hey, buddy, do you want to go on a road trip to a magical land?"
"Fuck yeah dude!"

"It's warm and the sun is out, what a day for summer fun"
"Fuck yeah, dude!"

""Let's be buds forever"
"Fuck yeah dude!"

*fist bumps and bro-hugs for all*
by k7d3b5 July 1, 2013
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Definition 1: When rejecting someone else's idea.
Definition 2: When someone tells you something unbelievable.
1:

Guy: hey dude here's my plan for the house
Person: No fucking way dude. This shit too expensive!

2:

Guy: hey dude check this out I caught it on video
Person: No fucking way dude. Did that happen?!
by allyssawashere May 9, 2022
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An affirmative exclamation professed by ecstatic females (or males) during sexual intercourse at the point of orgasm.
It is also a lifestyle brand started in the year 9 a.d.
(see fuckyeahdude.org)
"Fuck Yeah Dude!"
"Where are you going?"
"I'm going to pee out your cum!"
by skeezyjet July 25, 2009
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A combination of slang to use when you're in a stressful environment and you can't comprehend it. Typically used when playing video games.
*Gettin ganked by shyvana*
Aargh shit man.
...
*Gettin killed by shyvana*
Fuck man dude! He got me, Jeff
by DeepResjon March 21, 2022
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To do buisness with or to work with.
"Im a world class G mami fuck wit dude"
by Black Person December 16, 2006
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Declaration of the total disregard of any and all consequence(s) for the events to follow succeeding this phrase
Larry: “Medicare for All, are you kidding me? You want government controlled medicine?”

Hasan: (chuckling) “Hell yeah”

Larry: “You’re insane”

Hasan: “Fuck it dude, I’m sayin’ it... America deserves free healthcare!”
by Zypherzemus December 3, 2020
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