A person that takes internet jokes too seriously, can feel threatened by depressed white kids who make jokes on the internet, (see Beta, Retard, Velle Hostler)
"I WOULD DROP HIS ASS CAUSE OF HIS ONLINE TROLLING, BUT I'M TOO MUCH OF A CUCK, SO I'LL JUST TALK SHIT IN A PRIVATE GROUPCHAT."
A cuck is most simply a cuck. It cannot be defined by words, as it encompasses what it means to be human. There are many cuckolds in the world; they can be easily located out in the wilderness. Cuckolds are unfortunately hard to define but easy to find. Usually found with a bitty.
have you seen Hamish? he's a fucking cuckold. I don't know how to explain how I know, but he's a cuckold.