scare someone stiff meaning

[American idiom]
to scare someone severely; to frighten someone to death. (Stiff means ""dead."")
• That loud noise scared me stiff
• The robber jumped out and scared us stiff.

• scare so stiff:    [American slang]Fi ...
• scare someone to death:    [American idiom]to ...
• scare the hell out of someone:    [American slang]tr ...