lion's share

fair share

A significant amount, often implied to be excessive or inordinate; a great deal of something.

lion's den

Any dangerous or frightening place.

share and share alike

For members of a group, equal portions of or equal access to tangible or intangible goods, entitlements, or obligations—i.e., each person's share like each of the other shares. Often used in a context of reciprocity, or pooling resources.