Meated In is a term used to describe male groups such as a fraternity or more specifically a Rugby team. The new pledge takes an ass pounding from the rest of the guys as his initiation.

To have sex without a rubber/condom

A song about having intercourse without a condom, hence meat to meat. But it is also gay.

A slang term used by children to describe a penis.

A sexual assignation in the parlance of predatory males.

1) Muscle used for food.
2) A phallus.

1) The male sex organ
2) A substitution for any other noun verb or adjective