I had a PS demo disc a long time back... It was some Porche racing game, I think. You could press UP to honk the horn. That was funny doing that while driving around...
"Ass-holery"
I usually refer to people that change lanes too frequently and quickly as 'punks'. They'll pass you, then zip over to the right, come right up on the back of the next car, zip over to the left, pass, zip right...
They'd look a lot less obnoxious if they just stay in one freaking lane.