Mondegreen
A mondegreen /ˈmɒndɪɡriːn/ is a mishearing or misinterpretation of a phrase as a result of near-homophony, in a way that gives it a new meaning. Mondegreens are most often created by a person listening to a poem or a song; the listener, being unable to clearly hear a lyric, substitutes words that sound similar and make some kind of sense.
Never been able to follow the lyrics to most songs and have done this for as long as I can remember. Things can be misheard but there are intentional mondegreens as well:
A similar effect was created in Hindi in the 2011 Bollywood movie Delhi Belly in the song “Bhaag D.K. Bose”. While “D.K. Bose” appears to be a person’s name, it is sung repeatedly in the chorus to form the deliberate mondegreen “bhosadi ke” (Hindi: भोसडी के), a Hindi expletive.