a person who dates/sleeps with multiple people at the same time.
"you seein' someone?"
"im seein a few people, i guess you could say"
"oh, so you're a swinger?"
by hoyden April 7, 2004
Swingers can be couples (married or not) or singles.

They have a sexually free spirit. Couples tend to be in love with each other, and only "share" each other sexually with others. Sometimes this means "swapping wives" sometimes it means "group sex".

Single swingers generally despise the dating process and would rather meet at swinger gatherings where it is acceptable and in some cases expected that sex can/will occur on the spot with whomever they meet and feel attracted to.
Tom and Jane go to a party where they meet Gary and Nancy. They go to a room as a group for sex.

Tom and Jane go to a party where they meet Gary and Nancy. They go to seperate rooms: Tom takes Nancy and Gary takes Jane for sex.

Melissa goes to a swinger party by herself. Melissa meets John and Tracy (a couple) at the party. melissa, John and Tracy all end up in a room together for sex.
by Bigntasty Johnson January 19, 2007
a person who engages in consensual sex with people or couples outside of their core relationship.
She and her husband were considered swingers.
by Valkyriejack November 10, 2009
A married person who enjoys swapping spouses with another married couple.
Dick and Jane are swingers; last weekend, they swapped spouses with the neighbors for a sexual experience.
by UrbanWebster February 15, 2004
A person who dates around (not necessarily sleeps with many people) because they're indesicive or frankly don't want a steady
Jane:: I'm going on a date with Mike on saturday, his brother on sunday, and his sister on monday

Tim:: Wow, Jane. You sure are a swinger. Can't decide which one to pick?

Jane:: I just don't want a relationship at the moment.
by ko-gal October 3, 2006
See "Bob and Carol and Ted and Alice"
by Super Trouper November 11, 2003
a young child who likes to swing on the monkey bars
Damn he's a rull good swinger
by Horny bastard January 10, 2005