Top Definition
A product that has been over-engineered for a too specific purpose. A product is usually considered to be a left-handed sponge when it is marketed with a very specific purpose, yet another cheaper generic multi-purpose product can easily be used in its place.
Did you get some chain lube for your bike? Nah, it's a left-handed sponge. I just use WD-40.
by seanmft March 17, 2014
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