Very similar snd almost synominous with meh
and eh schmeh
1) A responce to showing that the speaker is indifferent (not bothered either way).
2) A reponce meaning one of, or a combination of several of the following: 'yes', 'no', 'maybe', or many others.
3) Often given as a responce or shouted at inappropriate times, especially by young people, to irritate others.