it is a euphamism for shame, guilt, maddening consequences; stemming from "A tell tale heart," by Edgar Allen Poe, where in he describes the agony of conscience. The murderer places the victim under the floorboards and drives himself crazy by imagining his heart beating through the wood.
by Kat November 20, 2004

by ZOE July 10, 2003

A door in a building on the second floor or higher leading outside that probably had a balcony or porch at one time, but now leads to nowhere. A door like this where there is something soft at the ground to cushion your fall does not count as a suicide door.
by Pumble September 24, 2005

A rude or inconsiderate person who stands directly in front of the door of a bus, subway or commuter train even though there might be plenty of room or even empty seats elsewhere in the vehicle.
by Renaldo Schwartz January 9, 2009

by Cheese Jockey July 23, 2020

A person whose selfishness and single-mindedness prevents other passengers from entering a train/subway with ease.
by AT13 September 18, 2013

by locals only November 11, 2006
