End pieces / trimmings: leftover end pieces when cutting meat, fish, bread, etc.; often sold cheaply as trimmings.
スーパーの魚売り場で切り落としを安く買った。
I bought fish trimmings cheaply at the supermarket fish counter.
ケーキの切り落としを子どもたちに配った。
I handed out the cake trimmings to the children.
肉を切るとき、切り落としはスープのだしに使える。
When cutting meat, trimmings can be used to make stock for soup.
Clipping / trimmings: cut-off pieces of paper, cloth, etc., or the act of cutting off excess parts (e.g., print trimmings, cropped parts of photos or footage).
印刷所から出た切り落としは資源ごみとして回収された。
The print shop's trimmings were collected as recyclable waste.
写真の切り落としでモデルの手が少し見えなくなってしまった。
Because of the photo cropping, the model's hand became partly hidden.