A Moseychuck
Doing something so stupid it makes your brain want to quit.
He tried to fix the toilet by throwing a football into it. Now the toilet's broken and he's confused.
She drove her car into a lake because she thought it was a parking lot. That's a Moseychuck.
He texted his mom 'I love you' in all caps and then called her a fat cow. That's a Moseychuck.