Definition
To have a serious disagreement or conflict with someone.
與某人發生爭執或不和。
He fell foul of his boss for refusing to follow the new regulations.
他因為拒絕遵守新規定而與老闆發生了爭執。
The company fell foul of the government for violating environmental laws.
這家公司因違反環境法而與政府發生了衝突。
They fell foul of each other over disagreements during the final stage of the project.
他們在項目最後階段因分歧而彼此不和。