verb; In the swinging lifestyle when one member of a
couple has
sex with a member of another
couple, who they are not attracted to. They do this so that their partner can be with someone who they really like.
1. Sure we can have a 4-way with that
couple, I won't have to soldier.
2. No way I'm going to
swing with that couple again, I'm tired of soldiering with that creepy
guy!