A Lifer
A person who spends all day doing one stupid thing because they're too dumb to do anything else. Like they play video games all day and then get mad at you for eating.
I played Fortnite for 14 hours straight and then cried because my mom made me do laundry.
I ran 5 miles and then sat on the couch for 3 hours.
I watched 100 cat videos and then fell asleep on the floor.