Gudetama

ぐでたま

Gudetama is the yolk of an unfertilized egg, lacking any gender. Gudetama is frequently shown lounging on an egg white or serving as an ingredient in a Japanese dish. Gudetama's primary characteristic is laziness. Gudetama suffers from severe depression.
His name derives from "gude gude," a phrase used to describe someone lacking energy or strength, and possibly from tama, part of tamago (egg).
Gudetama made his debut after a contest organized by Sanrio to introduce new characters based on Japanese food, where Gudetama placed second to KIRIMI-chan (a salmon fillet).