Greeting! It's about a prison drama. In the scene that a con's working with a shovel, a shovel was broken. So he needed a new one. Showing a guard the one broken, "Boss?". And a guard said "Sure thing. But I don't want to check your trunk for splinters. I want every piece accounted for." In here, I really want to know what "trunk" as a noun in here and "accounted for" mean. In Dictionary, "to account" means "to consider or reckon". But I don't understand that well.