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The O'Hanlon Distance is how far apart your mouth and your junk are so you can figure out the best way to group 69s and other dirty math stuff.
My O'Hanlon Distance is 12 inches. I don’t need no math to know I’m good at 69s.
She measured her O'Hanlon Distance and cried when it was only 8 inches.
He told his girlfriend, 'If your O'Hanlon Distance is under 10, I’m not doing no math.'