The phrase "what the font is" is commonly associated with tools and apps designed to identify fonts from images or text samples. One well-known tool is called "WhatTheFont," which allows users to upload an image of text, and the app uses AI to identify the font or find close matches. This tool is popular among designers and anyone interested in typography for quickly recognizing fonts used in various designs. Additionally, there are other font identification services like Identifont, Font Squirrel Matcherator, and Adobe Fonts Visual Search, which help users identify fonts by appearance or by uploading images. If the user is asking "what the font is" in a literal sense, it typically refers to identifying the specific typeface or font used in a piece of text or design. The best approach for this is to use one of the font identification tools mentioned above to upload an image or sample of the font and get the name or similar fonts in response.