Not the lyrics mis-heard, but a comma in the wrong place which completely changes the meaning!!! The sailors would say "me" instead of "my". And I'm not the only one who has taken this wrongly:
CORRECT: Oh do, me Johnny Boker, roll me in the clover.
WHAT I THOUGHT: Oh do me, Johnny Boker, roll me in the clover.
I sure did laugh when I saw this in print and realized my mistake!