What is Suck My Back?
1.
this phrase means fuck you.
hey, you, yeah you, suck my back!
See
2.
a nice way to say fuck you ; fuck off
if taken literaly this term can invole sucking someones back
jenny: wow sally your so ugly.
sally: suck my back !
or
Mom: clean your room sally !
sally: suck my back !
Mom: ?!?! i won't suck your back !
See