sear exhaustion, from completing a small amount of homework. can also be accomplished after pulling an all-nighter, when you just realized that the assignment your teacher gave you is due tomarow, especially when you have been procrastinating for long periods of time.
"Dude! Wake up!"
"Huh?~ Oh, sorry bro. I have severe homework fatigue, today. I only finished, like, three questions on our math homework last night."
"I got homework fatigue this morning, after trying to finish that project in science last night."
"Dude, wasn't that assigned two months ago?"
"It was? ..."