Only a true MHA fan would understand.
Deku: Hey, Todoroki?
Shoto: Wht?
Deku: I just found out on the news that your dad froze to death. Do you know who did it?
Shoto: :)
Deku: Hey Todoroki, are you done with your Halloween costume?
Todoroki: Yes. *comes out in a macaroni outfit*
Deku: Wha- I'm todoroni.
Bakugo: OMFG, I'm out! *blows up UA*