1. when some one with normal hair puts the middle part into a mohawk style without shaving the sides.
2. when someone with short hair attempts a mohawk (while correctly shaving sides), resulting in a 2-inch by 1/2-inch strip of hair.
3. one who uses either of the two styles of hair mentioned above.
1,2). Guy 1: Dude. why did you get a tardhawk? your hair looks retarded now.
3). Nobody goes to a tardhawk for hair styling advice.