“His regular spot was left empty, the grass he would normally flatten sitting upright and proud.”
“While the city can request that residents flatten the boxes for recycling, the reality is that residents rarely comply as it is a bit difficult to manage.”
“Derek knew that he'd be able to flatten the loudmouth with a single blow, but he wasn't prepared to start a brawl in the house.”
flat
(poker) To make a flat call; to call without raising.
(intransitive) To become flat or flattened; to sink or fall to an even surface.