Poly

po-ly

prefix
1. More than one.
If monogamists get one wife, polygamists get at least two.
2. More than usual.
Bisexuals can be in a relationship with either a man or a woman; people who are polyamorous can be in a relationship with a man AND a woman!

slang
1. Someone who practices having many romantic relationships at once, which is not the same as polygamy. Many loves does not mean the same thing as many marriages.
Teresa: I like Ken, but I think he's in a relationship with Barbie.
Whitney: Ya, but he's totally poly. He's also got a thing going with Kayla and Becky!

Synonyms: more open-minded than most, someone with a lot of spare time.