Tee-hee. But, seriously, in Gillian Gaar's 2010 book, Return Of The King, on the Comeback years, she found out where Millette got the idea for the song in the first place, and the line itself.George Smith wrote:"It's your baby, you rock it: you don't like it, you shove it ..."
From Elvis. Lamar Fike heard Elvis saying this little catchphrase all the time, at the time (catchphrase of the moment, I guess), and went over to the writer. And told him he'd never get a better line for a song!
rjm (sorry to have revived the old thread, but I had to make sure everyone knows this!)