A person who you barely know that you bring/send to a party to make things interesting. Can also be someone you find on the street a few blocks away.
Who's that ringer you left at my house last night? I couldn't get rid of that guy for days. He shit on my brother's rug.
Leaving a hotel without saying goodbye to the people you are sharing a room with. Like an Irish Goodbye, but in a hotel format.
Person 1: Think we should wait for them to get back to the room?
Person 2: Nah, let's get the f*ck outta here. Time for a Czechoslovakian Checkout.
Person 1: Word.