An insult tendered to a person with a wrinkled or ugly face.

Etymology: a portmanteau of 'knackers' (testicles) and 'pan' (face). I.e. a face that looks like a scrotum.
I see that knackerpan, Jamie Lee Curtis, got an Oscar. She's got a right old pair of swingers though...
by JG El Supremo May 5, 2023
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