Meghan Trainor – All About That Bass (2014) Meghan Trainor 2014 All about that bass Did you know that... According to English dictionaries, “bass” can mean a low music tone or a species of fish similar to the perch. In this song, we’re treated to a third meaning of “bass”: the behind. The track is about confidence and body positivity. How does this song make you feel? Report abuse SHARE THIS WITH YOUR FRIENDS