A legs bag is the scrotum. Its called a legs bag because your ball bag hangs between your legs.
Phil : Hey Dave I heard you put that cunt Cubbo into hospital last week.
Dave : Yeah, I found out that he called the cops onto me for no reason at all so I kicked him in the legs bag with my steel capped boots. They ended up amputating his balls.
Going to a strip club early in the morning and catching the breakfast buffet. Obviously the strip club has to serve breakfast, of which there are few. Also if you are in las vegas at a strip club until like, 6 in the morning and after blowing all your money on "Legs" you go and get some "Eggs", maybe at the hotel or a diner.
Typically done for a laugh, as first shift strippers are usually trashy.
Felix: how was vegas?
Tino: dude, it was awesome. out every nite getting wasted, then legs 'n eggs every morning.