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1. slam-clicker
People who upon checking into a hotel with others remain in their rooms instead of socializing. Used by airline crew to describe those who don't go out.

Slam - as in closing the door
Click - as in locking it immediately

also see: Olymic Flames
Flight attendant: "We arrived in London and were ready to party, unfortunately many in our crew were 'slam-clickers' and we never saw them."
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