Cucking

[Sarah]

To enjoy arranging for and watching other men have rough demeaning sex with one's wife. Often perceived as a masochistic humiliating experience for the husband as opposed to normal swinging.

[Justin Bieber]

To put something at [arms] [reach] with no way of actually [getting it].

[Gregory]

Cucking is literally [raising] [a child] that is not your own. [Figuratively] it means to do anything against your own self interest.

[Guest]

for a husband watch someone else fuck his wifes pussy