Any items collected i.e.. bottles, jars, railroad spikes, televisions, guitars, fish, donutsetc. and then taken into your car and thrown at road signs.
My friend and I had a great daythrowing road sign material (RSM) out of his car.
You're driving along, minding your own biz, when some jackass cuts you off. You keep your eye on him, and eventually he gets stuck behind someone in another lane, and you fly by him. You are experiencing road schadenfreude.
Someone who is a bad driver. Can be classified as two types;
1: the aggressive road pest ( one who speeds recklessly, drives beyond his/her ability, passes maniacally in the slow lane, waits until the last possible second to merge when lane is ending)
2: the oblivious road pest ( drives slowly in the passing lane, changes lanes without looking, varies their speed while driving on highways constantly)
"I hate driving through that part of the city - it's chock full of road pests!"