1. A smiley usually representing a person wearing sunglasses, denoting coolness.
2. A lesser-used definition of said smiley, instead meant to show a person with large "bug eyes." Indicates eyes popping out, craziness.
1. I went to the mall and reserved that new game today 8D
2. OHMGEE. That's SO awesome. 8D
A double entendre for a man with no equals. The no equals refers both to the fact that he is one of a kind and also to his exteremely small penis. The small penis reference is derived from the missing equals sign in the standard text representation of a penis 8==D.
Even though the artist formerly known as Prince may have rocked assless pants real hard, Matthew still remains the 8D.