Who is the stand up comedian who does L F language routine?

You're likely thinking of Jim Jefferies. He has a well-known stand-up routine about the "L F" language, using the phrase "the L word" and discussing its various implications and uses.

It's important to note that while this routine is humorous, it does involve adult language and may not be suitable for all audiences.

If you are looking for other comedians who have routines about language, you might also consider searching for stand-up specials that focus on topics like:

* Wordplay: Many comedians use wordplay and puns in their routines.

* Social language: Comedians often use humor to explore how language shapes social interactions.

* Cultural differences in language: There are numerous stand-up specials that touch upon the humor that arises from different languages and cultural uses of language.

Let me know if you have any other questions!