He doesn’t? I mean I guess my question is how can you tell which ones are  being yelled out or not? These are all from after Mt Lady explained the importance of yelling out attack names:

So here we have other students:

Or let’s see the pros:

I mean, I guess I’m just not seeing how Izuku is different....

This is Sanji’s first named attack, coming 43 chapters after his introduction in chapter 43. He went half the manga so far being a strong fighter in a shonen without naming his hits. In Baratie it was a character thing, showing how Sanji had lost his sense of idealism and wonder. Here, this is the first time he can actually do anything against any of these fishmen.

Sanji uses French in his attacks, unlike Zoro and Usopp’s Japanese or Luffy’s English. It works for a chef character, but I also like that this occurs in an arc that hinges on Nami’s relationship with Bellemere, who has the Frenchest name. How weird was it being named stepmother/mother-in-law before she adopted Nami and Nojiko?

See, the penchant for alliteration ruins the already perfect name of Mouton Shot, which for bonus points uses English as a crowning element in Sanji’s black leg style naming conventions. I like to think that bit is an homage to Luffy, who uses pure English for all of his most common attacks, those that are named for firearms.