Professional business name that plays on the word "sub" (as in, "sandwich" or "substitute") and the welcoming word "Yo".
The name "subyo" has only five characters and just two syllables. Two-syllable names are extremely rare and exceptionally valued. Established brands using two syllable names include YouTube, Google and Hilton.
Subyo.com is a dot-com domain. Dot com domains are the most popular, and the most desirable. A dot-com is the first thing people think of when they think of a website.