A jnco thug is a person who is a lower class citizen and wears jnco jeans, sweatshirts, etc. This person would also be white and think that they are a hardcore gangsta.
Teacher: Ok, Sam. What did you do over the summer holidays?
Sam: well.... I whet to Los Angeles...and....then I whet shopping with my mum...
Teacher: There's a 'but' coming, I can sense a 'but'.
Sam: But....
Teacher: Told yar.
Sam: But.... I whet shopping in a jeans company.
Teacher: What company was it?
Sam: The JNCO Jeans company.
Teacher: What on earth is that company?
Sam Its a company that sells gigantic trousers for men and boys.
Teacher: Does it stand for anything?
Sam: Yeah, It stands for- Judge None, Choose One.
Teacher: Okay...sounds like you had a wonderful summer vacation, Sam.
1. One who subjects to scamming or conning people. 2. One who plays runescape 20 hours of the day bullshits for 3 and bitches for 1. 3. An acronymn standing for jn=the first and last letter of justin con=the first part of con artist which he is.
Boy, Justin sure is a jncon he didnt have time to get a real girl so he took a runescape girl due to the fact that he had free cam acess and another person to scam.