he ... him/her/itThis is not a fixed expression: il means “he,” and l’ is the elided form of le or la before a vowel. Its meaning depends on the following verb; for example, il l’aime means “he loves him/her/it,” and il l’emmène means “he takes him/her/it.”
FR: Quand on parle de Paul, il l'aime beaucoup.
EN: When people talk about Paul, he likes him/her/it a lot.