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1.
Insult to be used exclusively in A2 Biology lectures, when one individual is participating in some good friendly banter with another.
Guy 1: "Dude I really don't understand Substrate Level Oxidative Phosphorylation, It does my noggin in"

Guy 2: "SLOP is easy, what are you?, some kind of of fucking dirty podocyte?"
by Big Nasher December 21, 2012