Verb
remove the interior of
Source: WordNetDrops of water hollow out a stone. Ovid
Empires of conquest don't last, Administrator Perry. They hollow out from within, from the greed of rulers and the endless appetite for war. John Scalzi
I wish the Queen had died the night before the Royal Jubilee – I wish she'd just fucking died. But they wouldn't have been able to tell us that she'd died. They would have had to hollow out her body and get that guy who plays Gollum to wear it. Frankie Boyle
hollow out a tree trunk Source: Internet
Carve the top of the pumpkin with a zig-zag edge, hollow out, and carve a traditional jack-o-lantern face on it. Source: Internet
Carbon-dated at around 1700 years old, the tree began to hollow out at around 1000 years old—which made it perfect for a small bar inside. Source: Internet