Description of something that has achieved a new and ultimate level of sucking, such that there is almost something fantastic about it. Also see: craptacular, pukeriffic
A festival of sucking (oral sex) no one is quite sure how many or what type of people constitute a suckfest, the only sure thing we know is that it involves much confusion.
Oh man...I was f-ed up last night. I drank a handle of warm Mr. Boston gin and had a suckfest in the laundromat with a couple of homeless people.