Short for cocktail party. Its a stuffy party where dudes go to meet other (powerful) dudes for financial gain usually by small talk, passing of business cards, etc. Wine, cheese and crackers, etc are usually served.
Not to be confused with sausage party where unexpectedly more dudes show up than girls and all the dudes are there to meet girls.
How did he get that promotion? Did he go to some cock party?
I went to a lame cock party with my co-workers last nite.
The act of intentionaly cock blocking some one with a group of at least fourpeople. Usually the atom bomb of cock blocking, and sometimes has long lasting effects.
Jeff: You totally cock blocked me last night.
John: It was an accident.
Jeff: Accident! You ran out yelling cock block party with five other guys.