Top Definition
The act of replacing pleasant and/or nostalgic memories with horrors. An audio or visual that is so effective it cancels out old memories with new ones that are forever seared in your mind and instantly call up bad feelings like sexual disturbance, shame, angst, hatred of humankind, or general ickyness.
"I can never listen to "Surfacing" again without thinking of one-eyed puppies due to The Mclachlan Effect."

"I can't let my niece watch the Muppets anymore since Kermit creeped me out with his reaction to "2 Girls 1 Cup".
by The Old Lady February 25, 2009

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