The female equivalent of being "pussy whipped" wherein a girl is so attached to her man that she will bow down to his every whim.
Jen is so cockstruck she did David's laundry, let him hang out when she had a test the next morning, attended his officer ceremony, and now she's letting him cop out on her 21st birthday because of a football game.
The opposite of cockblocked, cockstuck is when you enjoy the sex you are having so much, you cannot leave the girl you are having it with, even if Ex.1- she is having the same sex with your best friend, Ex.2- she's crazy, or Ex.3- your balls are so blue they are bound to fall off at any given moment.
I've been wanting to dump her for a few months now, but the bitch has me cockstuck! I have nightmares about our raucous lovemaking sessions every night!