The Hot Girls Club is a secret organization of all the hot girls you know. It is unknown how deep the club goes, but chances are if you know a hot girl they are involved with other hot girls and they are intertwined with knowledge of other guys, gossip, and current events.
"Ralph, Jessica is so cute! I saw her hanging out with Andrea at the watchtower the other day."
"Of course she's hanging out with Andrea. They're both hot, they're part of the hot girls club."
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.