扇 + 了 + Object
扇 (shān) means 'to slap' or 'to smack' when used as a verb, typically referring to slapping someone across the face. It is a vivid and colloquial verb. For example, 扇了一巴掌 means 'slapped (someone) once.'
她气得扇了他一巴掌。
Tā qì de shān le tā yì bāzhang.
She was so angry that she slapped him.
别惹他生气,小心他扇你。
Bié rě tā shēngqì, xiǎoxīn tā shān nǐ.
Don't make him angry, or he might slap you.
电影里那个角色被扇了一耳光。
Diànyǐng lǐ nàge juésè bèi shān le yì ěrguāng.
The character in the movie got slapped across the face.