Friend 1: "How's it going?"
Friend 2: "OK, I guess. I'm feeling a little tired."
Friend 1: "Sorry to hear that. Why are you feeling tired."
Friend 2: "I do most of the housework and I am finding it to be a lot of work."
Friend 1: "Oh, your husband doesn't help around the house?"
Friend 2: "He does a few chores but I do the lion's share of the work."
Friend 1: "Too bad. It would be better if you two shared the work."
Tom: "Where's Jeff tonight?"
Matt: "Oh, he's out on another date."
Tom: "He sure attracts a lot of girls."
Matt: "Jeff has always had the lion's share of girls. I've only had a couple of girlfriends."
Tom: "Well, Jeff is the quarterback of the football team. It is to be expected that he would attract far more girls than you."
Matt: "I suppose."
Having the lion's share probably means that you earned it.