Fat, Thick or Full Butt, Backside or Arsze, most often female. I originally heard this saying from a young male work colleague ('Milky') (Police Officer) when he was describing the physical appearance of a female.
When referring to a female's butt. "She has a Lunchy Back Nine" means it is a bit full and thick like the thickness of grass on the back nine holes of a golf course.
by Datamaxx June 8, 2009
 Get the LUNCHY BACK NINEmug.
Get the LUNCHY BACK NINEmug. Basically a time of death. One minute before midnight, one minute after 11:58. Only real nerds will get this reference.
Well, not until 2025. Because I'm from the future.
Well, not until 2025. Because I'm from the future.
by Dagranite June 20, 2016
 Get the eleven fifty ninemug.
Get the eleven fifty ninemug. by Griz April 18, 2004
 Get the Play the back nine.mug.
Get the Play the back nine.mug. The amazing local emo like band from the boring  city of pollution itself, Windsor, Ontario. Consists of insanely hot drummer...and three other guys.
by [x][jackIE - l e E][*] June 7, 2005
 Get the nine days sincemug.
Get the nine days sincemug. by DDR JESUS July 8, 2003
 Get the three six ninemug.
Get the three six ninemug. 
