To give someone a pearl necklace (ejaculate onto their chest/decolletage) and then urinate over the top of said necklace.
by luckyballs69 August 17, 2014
A rusty pearl is a hard object produced when sperm , poo and sand are combined within the soft tissue of the rectum after anal intercorse on the beach or in a sandy area.
i fucked this bitch on the beach in her ass and all the sand i pumped in her butt caused a rusty pearl to form .
by atomicjive November 30, 2010