1. One who cannot do the simpest tasks.
2. One who continuously creates havocs on the road due to making more than 2 attempts at parallel parking, running a stop sign, going 20 in a 30 mph zone.
3. Generally...an idiot.
1. You jabroni! The bowling ball goes up the lane...not BACKWARDS!
2. Did you see that jabroni? s/he rolled through the stop sign and didn't wait their turn.