Related Clues:

• Catch off-guard
• Make the hair stand on end
• Give a start to
• Heart-pounding event
• Fill with fright
• Do ''Boo!'' to
• Say ''boo'' to
• Near miss
• Hair-raiser
• Induce to jump
• 10/31 sensation
• A touch of panic
• Say "Boo!" to, say
• Give a fright
• Deter, with ''off''