Possible Clues:

• ''__ be the day!''
• "___ be the day!"
• "__ teach 'em!"
• '___ do, pig. ___ do.' (final line of dialogue from 'Babe')
• “___ be the day!”
• '___ show 'em!'
• '___ never work'
• "__ be the day!"
• Buddy Holly's '___ Be the Day'
• '___ do!' ('Stop it!')