Box up phrasal verb
To pack something into a box
She is boxing her toys up to give away to poor children.
To force to be in a small space
I hates boxing myself up into a bus at rush hour.
The verb “box" should be conjugated according to its tense.
To not wonder, worry or be surprised about what is not predicted will happen in life because anything could happen
Sometimes, the secret to stay happy is to expect the unexpected.