swinger

[ swing-er ]

noun

1. a person or thing that swings.
2. Slang. a lively, active, and modern person whose activities are fashionable or trendy.
3. Slang.
   1. a person who indulges in promiscuous sex.
   2. a person who engages in the exchanging of spouses for sexual activities.

swinger

/ ˈswɪŋə /

noun

1. a person regarded as being modern and lively
2. a person who swaps sexual partners in a group, esp habitually

Word History and Origins

Origin of swinger¹

First recorded in 1535–45 swinger fordef 1; 1955–60 swinger fordef 2; swing ¹ + -er ¹