1 definition by Kevin Scott (Yes! The one you know!)
Fatigue following a rollicking sexual encounter.
Woman: Ready for another turn in the sack, honey?
Man: Would ya bleedin' leave me alone, I've terrible shag-lag after that!
Man: Would ya bleedin' leave me alone, I've terrible shag-lag after that!
by Kevin Scott (Yes! The one you know!) July 6, 2005