Informal. must; have got (followed by an infinitive).
Definition: 3
to receive or come to have possession, use, or enjoyment of: to get a birthday present; to get a pension.
Definition: 4
to cause to be in one's possession or succeed in having available for one's use or enjoyment; obtain; acquire: to get a good price after bargaining; to get oil by drilling; to get information.
Definition: 5
to go after, take hold of, and bring (something) for one's own or for another's purposes; fetch: Would you get the milk from the refrigerator for me?