Macguyver's Stepchild
A street-smart brain who thinks algebra is just a fancy word for 'figuring stuff out while getting yelled at.' He's like a superhero who uses gum to fix his glasses and beats up a math teacher.
He solved a physics problem with a stick and a donut, and then beat up the math teacher for making him do homework.
That kid passed the exam with a crayon and a curse word.
He built a robot out of trash and got suspended for making the cafeteria explode.