The Muffs (the band) had a song with the ol' reverse vocal studio gimmick [1]. On a lark I pulled it into Audacity and reversed it to confirm that it was in fact one of the lines from the chorus in reverse.

Hilariously, she would sing the line in reverse when live on stage [2] as well. (No doubt she memorized the line from the studio recording.)

[1] https://youtu.be/l05wIkQ4ueg?t=119

[2] https://youtu.be/HgMrQIHpPGA?t=52