Can't catch me 'cause the rapper done died

The story:

I was in the car with my mom and was singing along with the tape. She asks me "Are you sure that he didn't say: Can't catch me 'cause the rabbit done died" I said why would he say that? And she explained to me that rabbits were used for pregnancy tests in the old days. I still was not sure she was right because that is not her type of music, but when I saw the mash episode where they figure out how to do a pregnancy test without killing radar's rabbit I knew she was right. The character in the song took off when he found out she was pregnant.