The amount and variety of sexual experiences that any given man's cock (treated as a separate entity) should be entitled to, which may be hampered by it's 'owners' lack of sexual prowess, confidence, or unusually high standards.
"I don't care if he doesn't find her extremelyattractive... he should date her as he needs more cocksperience!"
"I'm nearly 40, and still a virgin... I need to ramp up my cocksperience!"
In the washroom, while urinating in a urinal, you catch the bro beside you checking out your junk. At this point, you would say, "Aw, I just got cocksniped"