to work very late into the night.

I've got to get this report finished by tomorrow so I guess I'll be burning the midnight oil tonight.

• break your back
• break your fall
• break your heart
• break your word
• breast-beating
• breathe a sigh of relief
• breathe a word
• breathe down neck
• breathe down someone's neck
• breathe down your neck
• breathe easy
• breathe fire
• breathe last
• breathe life into
• breathe life into something
• breathe new life into
• breathe new life into something
• breathe your last
• breath of fresh air
• breed like rabbits
• breeze through
• breeze through something
• breeze through somewhere
• bridge the gap
• bright and early