Be scared stiff (of someone or something): be very afraid (of someone or something)
Noriko: I saw a roach on my ceiling, and I was scared stiff. I hate them.
Rick: Did you kill it?
Noriko: I sprayed it with bug spray.
Be scared stiff (of someone or something): be very afraid (of someone or something)
Noriko: I saw a roach on my ceiling, and I was scared stiff. I hate them.
Rick: Did you kill it?
Noriko: I sprayed it with bug spray.