The expression the lion's share refers to the largest portion of something which is divided. You might hear this expression used in relation to profits, for example, 'the lion's share of revenue was re-invested in the company'.

1. Kevin got the lion's share of the credit for the movie's success due to his superb, award-winning performance in the lead role.
2. Hailey always took the lion's share of the tips at the end of the night because she had worked there the longest.

1. As the largest shareholder, Janet takes the lion's share of the profit that the business makes.
2. The CEO received the lion's share of the blame for the company's failure due to his consistently flawed decision making and erratic behaviour.