Top Definition
This phrase is often used to describe a surgery or sugerical process. Knife standing for “surgery” was first recorded in 1880.
Example:
Sam: "When do you go under the knife?

Tim: "I have surgery next Wednesday. I have to take an

Ativan before I get there."
#surgery #medical #operation #doctor #hospitalization
by SigmaNutz December 25, 2011
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