pain-a-back Share definition Flag A Jamaican term for back pain, in this case caused by good lovin'. It's also the title of a song by Reggae/Hiphop group Worl-A-Girl. I mean dat, I give the bwoy pain-a-back (Worl-A-Girl) pain-a-back by SyntaxE July 10, 2006 0 0 Get merch Get the pain-a-back mug. Buy Now — $32.95 See more merch