The Rusty Crustacean is a sexual act where; a female lays on her back and her partner puts their thumb inside the vagina and four remaining fingers inside the anus of the female. Then, the partner squeezes their fingers together (reenacting the movement a crustacean's claws make when closing) causing fluctuation of the vaginal and anal region of the female. Maximum pleasure is promised if performed correctly.
by Nick Buhlugahorn April 13, 2015
Get the Rusty Crustaceanmug. I contracted a case of the crotch crustaceans from the trousers I purchased at the Salvation Army Thrift Store. Of course the old lady just ain't buying it...
by Blenderhead91 March 31, 2009
Get the crotch crustaceanmug. when you have sex and your intercourse partner cums on you're vaginal area and you forget to clean up and it dries up and stays on your vagina and it hardens into a crust
by obama jesus satan kawaii queen August 21, 2014
Get the vagina crustaceansmug. by Javier2798 November 7, 2017
Get the Bourgeoi-Crustaceansmug. by Hot mama Hershey December 6, 2017
Get the Crustacean yogurtmug. Otherwise known as crabs, sexual crustaceans are obtained from doing the dirty with a someone dirty. Sexual crustaceans itch at the pores of hair that are infected and can only be killed by medicated shampoo.
by Umass Lowell Leitch Basement November 22, 2009
Get the Sexual Crustaceansmug. "Oh man, did you see SU Dave? Looks like he took a hard crustacean rimming. His crabhole didn't look good."
by Norm Coleman February 19, 2009
Get the crustacean rimmug.