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1.
Married men know Murphy's Load well. Murphy's Load refers to the times when you've secretly masturbated and for an inexplicable reason, within hours, your wife is all over you, despite a huge dry spell leading up to jerking off.
"I jerked off because I couldn't take it anymore and suddenly she was all over me. This is known as Murphy's Load."
by Foobie April 14, 2004