A: Oh, what’s the hurry? I mean it’s only November.
You’ve got lots of time till Christmas.
B: But you know what Santa says: Post early for Christmas.
A: That’s right; have to do what Santa Clause says. Oh!
How are you going to get some of these larger parcels in the mailbox?
B: Oh, they won’t fit in the mailbox. I’ll have to take them to the post office.
What does “get” mean in this dialogue?
Does it mean “fit” or something else?