He can fish around in the refrigerator for something to eat; because, there isn't anything in particular prepared.

nope.

Pick someone up from school; or, you're going to/you'll be at the school?

(fish travel in schools)

ETA:

Pick up some beer?

(thirsty as a fish out of water)

nope. It's a warning, but nothing to do with sex.

Kids are wet, swimming stuff on the floor?

When you text Beest the word 'fish', is the word 'fish' a verb, or a noun?

Does it mean to try to find something good in this day?

Does it refer to something specific to Beest?

Does it refer to the sprog in some way?

Fill up the gas tank.

no, no and no, not really. But I feel like you're on the right track

Beest usually tells a sprog or two to do something in response.

Beest is always at home when I send this text.

Feed the fish?

Move their vehicles so you can get yours into the driveway/garage?

Noun

Close

Move their swimming gear so you can get into the house?

Clear their stuff off the table and set it 'cause you're bringing home something for dinner (fish & chips)?