Originally Posted by
capngrog
That's only part of the "old saying". The full saying is: "It's all fun and games until somebody gets knocked up, down or out". By way of explanation for our British Cousins, "knocked up" in Americanese, means impregnated.
Cheers,
Grog
Yeah, means the same here - also, the original phrase goes back to Roman times apparently, "it's all fun & games until someone loses an eye", as eye gouging wasn't allowed, although pretty much everything else was...