What does "modest" mean here? and when do you use it?
Native speaker’s answer
Rebecca
Modest can be used in a few ways, and one meaning is someone or something that is humble or shy or not extreme. In this situation, he's saying he doesn't wear underwear because he is not shy. This is a joke based on the fact that he does not wear any clothes. Ex: A: Will you model this bikini? B: Sure! I'm not modest.