The use of a male genitalia skin as a form of contraceptive.
This is created by the surgical removal of the insides of the testicals, but leaving the stretchy scrotal skin (scrim) intact. This is then stretched over another penis when required.
"Man, Edward Norton would make a great Buanskin"
"I forgot the condoms, do you think John is up for a Buanskin?"
When Gary woke up late for work Saturday, he realized he had a mean case of morning wood. Already late with little time to spare, he asked Janaya for a beanski whilst he brushed his teeth.
1. When you refer to someone who watches anime and has a permanent sunburn 2. The kind of guy who doesn't have a filter but understands what to and what not to say 3. A rubbish/trash bin made of skin often human skin but can be animal hide.
1. Although that Binskin is weird he's makes some good conversation.
2. Andrew acts like a like a Binskin at work but at school he's completely different.
3. The police found at Binskin at the killer's lodge.