(well,) shut my mouth

(well,) shut my mouth

colloquial An exclamation of shock, surprise, or incredulity. Well, shut my mouth! I never thought I'd see you around these parts again! A: "Turns out that he was actually my long-lost uncle." B: "Well, shut my mouth. What an incredible story!"
See also: mouth, shut

Well, shut my mouth!

Rur. I am very surprised! Well, shut my mouth! I didn't know you were in town! Tom: The governor's on the phone and wants to talk to you. Jane: Well, shut my mouth!
See also: shut
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