i think everyone kinda knows that:
you hear a song and then start singing it without really being sure what the lyrics are...
what were funny misunderstandings of lyrics you might have sang yourself for some time? or maybe you liked the line you understood even better than the original one?
i can remember that i always sang (and still do)
"she gives appropriate shape to my heart"
"she keeps it pumpin' straight to my heart"
when we used to play NIRVANA's Aneurysm.
what's your own favorite misunderstanding?