If you are quick to argue, always looking for a fight, and hard to please, you are truculent. You can also write a truculent essay, and fans upset by a loss can become truculent.
This word has no connection to truck, but the similar sound is still a good way to remember it: truculent folks are like monster trucks, ready to run over anything that gets in their way. To be truculent is to be defiant, aggressive, and quarrelsome. A truculent student will get in trouble with teachers, and a truculent teacher might get fired. In a violent sport like football, it helps to be truculent, but it's usually not a great quality.