What is it called when Transposing the first letters of words in a sentence?

There isn't a specific, widely recognized term for transposing the first letters of words in a sentence. It's a unique linguistic manipulation that doesn't have a standard name.

Here are some potential terms you could use, depending on the context:

* First-letter transposition: This is a descriptive term that clearly explains the action.

* Acronymic transformation: This is a more abstract term that emphasizes the creation of a new word from the initial letters.

* Initial letter swap: This term highlights the exchange of letters, but it doesn't convey the creation of a new word.

* Wordplay: This is a general term for using language in a creative or playful way, which encompasses this manipulation.

Ultimately, the best term depends on the specific purpose and context of your use. You can also create your own descriptive term if needed.