Someone who is so stupid beyond belief that you actually can't begin to fathom it. They have smoked and drunk themselves retarded, and have not gone to school since the 3rd grade. A Tyler will spend all hours of the day playing dumb violent video games, and only stop and think about the contents of their bellybutton or how big that girls tits are. Anyone that spells the word "really" wrong or thinks Geography is the study of blowing up Arabs, they are probably a Tyler.

When you eat dirt for the first time and leave your family to build a shack in the woods