Manywords could be used up and wasted to describe what can be described with a single word: You.
Although there are many idiots online, and no shortage of them at urbandictionary.com, if you want to see the ideal definition, go look in the freaking mirror.
1-You, for actually looking this up in your spare time.
click here to get a life
2-Someone acting stupid, doing dumb assed shit, making no sense, clicking the link i made, or just a plain moron...
Someone who does not comprehend that donut can be spelled either DONUT or DOUGHNUT, along with the fact that the shorter version of the spelling (donut) is NOT SLANG. It's just another spelling of it!
That DONUT tastes delicious, and I will spell it D-O-N-U-T anyway (even though it can be spelled either way) because it's easier and takes less time to and it's not slang you IDIOT.