The correct spelling of the word that refers to an excessive desire for food or drink is "gluttony". The pronunciation of this word is [gluht-n-ee], with the stress on the second syllable. There is no word in the English language spelled "un gula". It is possible that you are trying to refer to the Latin term "un gula", which means "throat". However, it is important to use correct spelling and terminology when communicating in English.