To understand something, to catch on.
To get what's coming to one: to feel someone's wrath; to receive punishment; to receive a retaliation; to receive a beating.
To have sex, especially referring to its possibility or eventuality.
Used other than figuratively or idiomatically: see get, it.
Used to encourage someone, especially to indicate that someone is doing something well.
Used to draw attention to a pun or other joke one has made.
Do you understand? Have you heard? (after explaining or giving an order)
To become organized, current, or aware.
To work productively toward the objective of a shared enterprise, especially after the objective or the environment has changed.
To comply with the norms of a social group, especially a shared enterprise.