A trombone that, when subjected to water or water-based liquids and even air moisture for a long enough time, develops an outer layer of iron oxide most commonly known as rust. It makes a trombone aesthetically and ergonomically unpleasing, as well as difficult to play.
Andy: Hey Bobby, do you want to play my flute?
Bobby: No, I want to play my trombone but it's not working. I dropped it in the water and accidentally left it there for six weeks. Now it is a rusty trombone.
Andy: Well shucks.
Bobby: No, I want to play my trombone but it's not working. I dropped it in the water and accidentally left it there for six weeks. Now it is a rusty trombone.
Andy: Well shucks.
by Chigglywiggly February 14, 2010
by jack b. nimble August 31, 2003
getting your ass crack and/or ass hole licked while the girl reaches around and tugs on your cock. Thus looks like the girl is "making music."
by Sam from Philly July 22, 2005
When you take a girl into a sauna, take a dump on the sauna rocks, wait for it to steam up, then have sex while the arouma fills the air.
by Dornan May 06, 2007
When in the act of using anal beads on male or female. Ripping them out too fast results in a fecal splattering which gives it the name of the rusty chainsaw
the other night i gave my wife a rusty chainsaw and as punishment I had to clean that room for hours
by kraab19 February 22, 2009
A standing man getting his asshole eaten out by the woman he just ass-fucked, while she jerks him off from behind. The man has to have ass-fucked the woman, hence what makes your trombone "RUSTY"
by Mr. Bator July 30, 2008
by crabbie420 February 10, 2009