Definitions for "Deus ex machina"
Keywords:  machina, tricky, drama, plot, untangle
Literally, 'god from a machine'. This was a convention in ancient Greek and Roman drama that allowed a diety, brought in by stage machinery, to intervene in a difficult dramatic situation.
From Latin, meaning "God In The Machine" An unexpected, artificial, or improbable character, device, or event introduced suddenly in a fanfic to resolve a situation or untangle a plot.
Literally "God from the Machine." This refers to the author's need to interfere in a story to create certain events or resolve a conflict. In other words, the plot is unnatural and difficult to accept.