Nickname for a niche internet micro celebrity that posts feet pics, sonic porn, and mild hentai on their twitter and Instagram stories. True to their nature and unlike many internet personas, they do not post anything for clout but rather only for personal enjoyment. A tamagothic's deepest darkest desires are expressed on the internet with full transparency.
Person 1: "Damn Shrek porn on your Instagram again bro?"
Person 2: "Yea I've been going full tamagothic lately!"
Originally, this was the electronic egg-shaped toy from Japan. (Sooooooo 1997!) It was the first in the trend of virtual pets.
Now the word can be used in a different manner. It can be used to describe a person. When calling someone a "Tomagotchi," you're basically saying that they're needy. Usually needy in an annoying fashion. This, of course, pays homage to the original toy's constant beeping due to wanting virtual food or other things...