What does chip on their shoulder mean?

I think it's like holding a grudge

having a grudge

Explanation:

having a grudge or thinking about yourself

wood chucks can't chuck wood so no wood

the cost of attendance or coa is an approximate budget for the cost of attendance of the whole academic year. in order to calculate this, universities take into consideration many factors like room and board, tuitions and fees, books, transportation and personal expenses such as medicine, laundry, clothing. all these factors combined make up the final sum to the cost of attendance in each university.