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1.
When someone (usually with long legs and large feet) invades your under-the-table space with their legs and feet making accidental contact with yours. Often results in an awkward apology.

This originated when neighboring co-workers' under-the-table space were often violated by Rylan's extended limbs.
"I've been riolated!"
"Please stop riolating my space, thank you."
by Kreakdude April 29, 2010