Trapdoor

[Sarah]

A lifting or sliding door covering an opening in a roof orfloor.

[Sarah]

The sexual maneuver, where the penis is repositioned from the vagina to the anus very quickly during intercourse.

[Sarah]

During the inhale or exhale process of smoking a bong or other devices, a trap door occurs when the flow of air is stopped abruptly by a cough which constricts the wind pipe to the lung. This traps the smoke inside the lungs and causes extended exposure, resulting in temporary distress to the user's throat and/or lungs.

[Sarah]

The act of disappearing during a drinking session due to too much drink/lack of money/boredom/avoidance of forfeit without letting anyone know.

[Sarah]

A door on the floor or ground, oftentimes in a castle, which can be lifted to reveal a tunnel or chamber. Sometimes concealed by being made to look like the floor, hidden under a rug, located in a secret room, or otherwise hidden so that it will only be found by those who know of its existence and location. Some trapdoors lead to a storm cellar for protection from tornadoes, but the more commonly thought of trapdoors are those from the middle ages. They were oftentimes entrances to dungeons where prisoners were kept, cellars where food and drinks were kept, or tunnel networks leading away from a castle that allowed castle residents to escape in the event of siege.

[Sarah]

a Booger, usually quite dry, that is neither in or out of your nostril. When you breathe in the out the trapdoor Booger opens and closes.

[Donald Trump]

a small door in a ceiling or floor:

[Becky]

A hinged or removable panel in a floor, ceiling, or roof.