A childhood belief about misheard lyrics

My mom used to hate the band Queen, so she never bothered to find out the words to Bohemian Rhapsody, but I listened to it all the time, and one day when we were in the car and it was playing on the radio, she asked me why he kept saying "poor boy so often.
Well, since he actually does say that in the song (I'm just a poor boy, etc.)
I tried to tell her to just listen to the rest of the line until I figured out that she was mistaking "Mama" for "poor boy". Then several weeks later, we were listening to it again, and she asks me what they're saying (during the "Bismillah" part). I actually SAY "Bismillah", to which she replies, "Who's Miss Miller?".
Then I wrote the lyrics out for one of my friends and for some reason she thought that I wrote "Door boy" instead of "poor boy" (I don't think my handwriting is that bad!).
Also in their song March of the Black Queen, For some reason I thought the line "Forget your singalongs and your lullabies" was actually "Forget your seminars and your lullabies" and I sang it that way for several months (it made sense to me, but now I don't know why). I also wrote down another part of the song for a different friend, just to annoy her (because she likes country music) and I wrote the "I reign with my left hand, I rule with my right" part, and she thought it said "I resign with my left hand".
I finally thought it was all over with, but that seems to be impossible. My grandmother at first thought that Tie Your Mother Down was called Tie Your Brother Down. I corrected her and forgot about it until recently, when my mom asked me, "Is he saying 'I got my ass all tight'?" (it's actually 'act'), when my grandmother asked me what song it was, saying, "Oh, is that Hold Your Mama Down?" She also thought that Wild Cherry's Play That Funky Music was Play That F---ing Music and yelled at me for singing along with it (with the correct words!)