When you watch your husband/wife getting intimate with another person while you are in the corner playing with yourself.

An emasculated man who takes staged photos of his girlfriend, wife, or friend specifically for attention and likes on social media.

Also refers to a man that likes to watch his significant other get railed by other dudes.

Someone requiring female permission and gratification, similar to being whipped/male bitch.

Another word used to define a white liberal vegan prick who gets off on watching his girlfriend get fucked by another guy/girl.

Noun: "Unhappy Third". Individual in a triad. Person (A) who is ostensibly related to another person (B) who is engaging with another (C) in an intimate, sexual or profitable manner. Particularly applicable to circumstance in which (C) occupies the role more frequently occupied by (A). Can also apply to animal kingdom, where it was observed in reproductive mating patterns of cuckoo bird. Variously refers to value judgments ranging from approval and enjoyment by (A) to use as a term of derision.

2. Since roughly 2015 began being seen as a derisive term by which farther-right users distinguished themselves from more centrist conservatives, hence also "cuckservative". When used in this manner or more generally as a derogatory, implies a racist and heterocentric viewpoint, suggestive that moderate politics are equivalent to enjoyment of inter-racial wife-swapping.

Verb: To conduct activities which make of (A) a cuck.

When a guy has a fetish for watching his wife/girlfriend get fucked by other guys