In addition to the above (very literal) definition, "cocksuckery" can also be used figuratively to refer to activities of little importance.
"Say, Jim, want to watch the winter olympics with me on tv?"
"I'm not interested in that cocksuckery."
1. The art of being a cocksucker.
2. The act of belittling someone for one's own amusement.
3. Pertaining to acts of pretentious bullshit.
There's no denying that fact that you're an asshole, but your futile attempt of cocksuckery does not phase me (2).
I really enjoyed that play, but there was a little too much cocksuckery going on for my taste (3).
the art of cock sucking
man, that shit was so fine, he must have gone to the New York Institute of Cocksuckery.