1
a smelly, loud, annoying person who won't shut up
My cousin is a hailjack. He talks during movies and eats nachos like it's a warzone.
That kid in math class is a hailjack. He keeps asking questions even when I'm done with the problem.
My neighbor's dog is a hailjack. It barks at 3 a. m. and won't stop until I throw it a bone.