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1.
9/11/14/15 year old "Jessi Toxic Slaughter" posted a youtube video entitled "Muh Emotional BreakDown Over All Of You Guys Shit!" on July 15, 2010 under the account "Kerligirl13" whining about /b/ harassing her by sending pizzas to her house after posting several videos where she claimed to be "prettier than u even without makeup!!!!111!!" and telling "haterzz" that she is going to "pop a glock in your mouth and make a brain slushie". Mustache/Ankle sock man (aka Papa Bear) made a cameo appearance in the video and stated that "you dun goofed". Tumblr and worldwide internet memes ensued. See also: "Consequences will never be the same".
Mustache/Ankle sock man: "YOU DUN GOOFED! consequences will never be the same!!11!!"
by TumblrTard July 16, 2010

Words related to you dun goofed

dun you goofed
 
2.
When you have committed an act in which "consequences will never be the same again"
You dun goofed!
by Don Goof July 15, 2010
 
3.
A new and popular term meaning consequences will never be the same.

you can call the cyber police if this happens.
Child: DADDY!!!!11!! SOMEONE'S BULLYING ME ON THE INTERNET

Dad: -towards the internet- YOU DUN GOOFED IMA GET THE CYYYBBER POLICE AND THE GOVERMENT ON YOUR ASSES.
by Shihmale July 17, 2010
 
4.
an exclamation of complete rage over ones comments on a internet video.
Your threats towards my daughter are gunna be blahblah blah billymays rapist.....
you dun goofed
by ANON@/b/ July 16, 2010
 
5.
When you troll somebody really hard!!!
and consequences will never be the same
guy 1: so i herd you leik mudkipz

guy 2: no

guy 1: so i herd you leik mudkipz

guy 2: shutup

guy1:so i herd you leik mudkipz allllot!!!

guy2: rages and makes a video of him having an emotional breackdown and upload on youtube

guy 2's father: you dun goofed
by VoltronLadiesMan August 13, 2010
 
6.
When you've dun something thats just plain stupid.
That Guuuuuuurl: oh WOOPSIES.. I just spilt water all over your desk....my baad...
Me: YOU DUN GOOFED!! CONSEQUENCES...WILL NEVER.BE.THE.SAAME!! O____e
by BabyTanTaniaBobania April 04, 2011