slammer

noun slammers

1. One who, or that which, slams. Margaret was also, by her own admission, a determined slammer of doors.
2. slang Jail, prison. A man being sentenced for starving some horses chose 24 hours in the slammer with no food rather than seven days with the regular amenities.
3. A tequila cocktail that is slammed onto a surface to induce fizzing.
4. One who takes part in slam-dance.
5. One who competes in a poetry slam.
6. In the game of Pogs, the heavier piece used to strike the stack of counters. The basic modern 'Pog' game is played thus. Each child tosses a pog into the arena, face-up or face-down, as agreed. Each player in turn takes his slammer and pitches it hard onto the accumulated pile of pogs.
7. UK, slang A slam-door train. I was in Britain, wanting to take a train to Portsmouth, and I only needed a one-way ticket. I did love the English trains; we still had slammers then. A slammer is a train where you got to slam the door shut yourself.
8. A fraudster who carries out slamming (fraudulent changes to a customer's service).