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An act of sexual mischief. Up to no good in a naughty fashion.
"I thought Marcus was me best mate, but he was up to all manner of ballcockery with me wife."

"Methinks Ted and Alice are engaged in acts of wanton ballcockery."

"Wouldst thou join me in a bit of ballcockery, love?"

by Mr. Softey January 23, 2009