cockblockathon 

An all-out-rampage-assault on humanity where by one ruins the evening for everybody else, yet gets laid somehow and to top it all off manages to forget the whole experience the next day.

Excited voice - How was the party last night Alex?

Very pissed off voice - Shit, Patrick went on a "cockblockathon".

Disappointed voice - Oh no. Not again.

Group sigh...

cockblockathon by Dirty Electric November 22, 2010

cockblockatron

1 Someone who cannot stop being a cockblock, and seems to have a man-crush on one of their friends who they cockblock, or someone who is unhappy with their situation so they want to make their friends suffer by cockblocking them.

2 Someone who seems to cockblock everybody all of the time for no apparent reason.

Sam is such a cockblockatron, he keeps showing up whenever im trying to get some ass.

cockblockatron by anononononomyous December 27, 2008