Thug wannabe adolescents that present obvious stunted growth (short height, mental handicaps) from a likely deficient diet and improper mannerisms such as name calling once a safe distance away from the target.
I cretin might say:
Yo, this 50 cent is da bomb. I'm gonna go skateboard back to my crib, make a bowl of Trix cereal, and listen to dis. Hey, somebody yell "faggot" at that guy we walked past 500 yards ago.