Possible Clues:

• This part of the joint is for those needing a barber
• Tenderloin offered at reduced price
• Your hair may be a little too long for this part of the joint
• The part of the joint that could do with a barber
• Slice below or lower prices
• From the joint where so many men seem to have hair that's not short enough
• Charge less than German joiner and truce breaker
• Come in with a lower price
• Beat in a price war
• Weaken, undermine