An acknowledgement that shows you know someone is telling a lie. Also sometimes used inadvertantly by the liar in the process of lying. First used in this manner by a York High School heavyweight notorious for his fabulously fabricated stories about what he did that weekend.
"She had the hottest friend and the three of us got it on!"
"Really?"
"Yeah dude, it was awesome!"
"Yeah dude."
"No really, it totally happened!"
"Yeah dude, I totally believe you!"
by LeBonier January 12, 2005
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A gap filler often placed at the end of a sentence or in order to complete a thought; carries no significance.

The origins of "but yeah, duded" are not completely known. It is believed to have started in small circles and gained notoriety through the internet.

Derived from "so yes" and "dude". "So yes" is simply used when people have nothing to say; "duded" is the misspelling of "dude", a reference to the person you are talking to. People who often say "but yeah" avidly misspell words.
Kevin was invited to Emily's house in order to watch old Law & Order episodes. However in the middle of the episode Kevin became too enthralled and knocked over Emily's prized trophy. Emily became so mad that she bit Kevin, which caused Kevin to proclaim "you bitter (sic)." Upset by what had just unfolded, Kevin decided to leave and go home. He was upset at society's injustices and decided to let it have its own way. At home, he invited Sharyn over, but she could only come next month because there must be a month's notice before anyone can come. But yeah, duded.
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Phrase used to start a sarcastic comment or response. It can also be used on its own to imply sarcasm in different contexts. It's basically used to mess around and joke with your friends, but it can be mean if you want it to be.
Acquaintance: Hey man, do you wanna hang out tonight?
You: Yeah dude, I like you.

Teacher: Your final grade will be based on one 15-18 page paper.

You (to friend): Yeah dude, we're gonna pass this class, right?

Man: Will you marry me?
Woman: ....yeah, dude.

Bro: Dudeeeee you tryna blaze tonight??
You: Yeah dude, I don't have work tomorrow morning or anything.

Friend: Dude could you do me a favor and get me a drink?

You: Yeah, dude! (you don't get the drink)
by weinerenthusiast December 20, 2012
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when someone says something that:

a) you don't care about

b) dont know anything about

or when you walk up to people in the middle of a conversation and you want to add your 2 cents.
mike: "hey, stan! get this! yesterday, me and my guild totally went to ICC 25 and pwnd the lich king!"

stan: "yeah, dude. soccer."
by yeahdudesoccer February 18, 2011
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A podcast dedicated to delivering a look at America through the eyes of two American Americans. Hosted by Seth Romatelli and Jonathan Larroquette (song of John Larroquette from Night Court). Recorded completely off the dome and is completely hard as is.
Uhh Yeah Dude: Molding the minds of young America.
by Ohemgeeitsme March 22, 2008
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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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A phrase (coined by Rory Donohoe) used as an alternative to the word "yes". Usually spoken in a joyful tone.
EvBev: Boys we goin' Merrion?
Dude: Hell yeah dude!
by TopBoog June 22, 2016
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