Related Clues:

• Discouraging word
• Get off here
• 'Stop that!'
• 'I don't want to hear any more!'
• Instruction at many a corner
• 'No!'
• Intersection sign
• Investor's order
• Hang it up
• 'As is,' e.g.
• Word on an octagon
• Proctor's call
• 'Give it a rest!'
• Sort of sign
• Pull over