L.T.L.
A Left Turn Loser is a driver who thinks they're the only one who can use the left lane. They don’t know what a traffic jam is.
He did a left turn in the left lane and then looked at me like I was the problem.
That L. T. L. turned left and got stuck behind a truck like it was a personal insult.
She did a left turn and then honked at me like I had done something wrong.