It's always there, and you want to fill yourself with it.
"I wanted to fill the other house with friends and beer."
If they're sick for seven days or less, you may want them to fill in a form saying so.
Someone want to fill me in on what they mean there?
It's not even clear that the committee has decided what kind of position it wants to fill.
Not that anyone could or even should want to fill his shoes exactly.
"Do you want to fill me in on the situation?"
Now, do you want to fill that hole in again?
Before starting out, measure the space you want to fill.
I don't want to fill my friend list right now.