Sloppy seconds
Sloppy seconds is a slang phrase for when a man has sexual intercourse with a female or male partner who already has received another man's penis in the relevant orifice and is therefore wet or "sloppy". The phrase buttered bun is sometimes used to refer to said orifice. The practice is also referred to as a "wet deck".
The term is used, by extension, to refer to any act of entering into a sexual relationship with a person who had previously been in a sexual relationship with someone else in one's peer group.
