The correct spelling of the phrase "garbage down" is usually "gobble down", which means to eat quickly or voraciously. The pronunciation of "gobble" is [ˈɡɑbl], with the stress on the first syllable and the vowel sound of "a" as in "father". The word "down" is pronounced with a schwa sound [dəʊn] and is unstressed in this context. Therefore, the correct IPA transcription of this phrase would be [ˈɡɑbl dəʊn]. Always be careful with your spelling to ensure a clear and accurate communication.