A Fobia
When you're too scared to go out, do anything fun, or even go to a party. You just sit there and eat chips.
I have a phobia. I'm too scared to go out. I just eat chips and watch TV.
My friend has a phobia. He's too scared to go to a party. He's just sitting here.
My mom has a phobia. She doesn't go out. She just eats chips and yells at the TV.