Cockserphobia originates from the word claustrophobia. Claustrophobia is the fear of being in a space that is too small. Cockserphobia is the fear of having more than one penis inside of you at one time.
Me: Hey Sarah want to have a threesome with two dudes this weekend?
12 step recovery jargon referring to someone new who talks about how great life is, now that they'resober. Usually meaning that the person is out of touch with reality.
The new guy seems pretty happy for a dude who has no job, no money and no family. He must be on a pink cloud.