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Writing or drawings scribbled or sprayed illicitly on a wall in a public toilet—a cheapskate’s way at venting out your frustrations at the authorities.
Jeff was caned by the school principal for contributing these toiletffiti:

“Print the school rules on toilet paper—where it belongs.”

“A math degree is as useful as toilet paper—good for wiping your ass.”

Q: What is the difference between a toilet and a Singapore Minister?
A: A toilet only has to deal with one asshole at a time.
via giphy
by MathPlus April 23, 2018
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