Any relatively thick, solid part of a fruit, nut etc.
A penis.
The flesh (muscle tissue) of an animal used as food.
A type of meat, by anatomic position and provenance.
The sweet spot of a bat or club (in cricket, golf, baseball etc.).
The best or most substantial part of something.
A totem, or (by metonymy) a clan or clansman which uses it.
A meathead.
The soft inner part of something, especially the pith of a fruit.
The medulla oblongata.
The internal tissue of a plant.
The inner substance of various organs and structures, especially the marrow of bones.