Thin privilege is when your French teacher says in class, “De quoi ai-je besoin quand je deviens grosse?” (What do I need when I get fat?) - and is looking for the answer, “Vous avez besoin de faire une regime” (You have to go on a diet) - and it’s just a cute joke to show you how to use “besoin de.” Thin privilege is thinking this is a perfectly acceptable and amusing way to teach French grammar. Thin privilege is also not being offended by the exaggerated eating gesture your teacher makes to illustrate her “getting fat.”