A dweeble is someone (or animal) who amazes and astounds others with their adorable presence. They have a magnetic personality, are mysterious and do exactly what they want, when they want. Others admire their free spirit.
An example of a Dweeble is one with 'tiger blood' (or just make up your own, not sure what to put here)
A young idiot who bobbles around trolling or perving people online because they are so self absorbed and insecure they think it makes them feel better to unsuccessfully try to offend others
Joe is such a dweeble to be posting his Johnson on everyone's status!
Ulzzang true definition is "best & "face" = best face in korean. They are basically people with above average looks, sometimes with the use of photoshop and haduri who post their pics online, some becoming internet celebrities.
"Hey, see that chick over there? She's pretty enough to be an ulzzang. :D"