B.D.E.

B.D.E., BDE, acronym abbrev. "Best Dramatic Effect'; in RPGs, refers to the GM determining outcomes based on what will look good, be funny, or be dramatic, rather than on strict reality or on strict interpretation of the game rules. [MD]
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Addendum: Often used when a player attempts something highly unlikely but stylish. May have originated in Paranoia, in which rewarding successes for entertainment value was specifically encouraged. [MD]
Addendum #2: This is actually a game mechanic in both the "Exalted" and "Scion" game lines originally by White Wolf. Pulling it off successfully will actually earn willpower points to burn on further BDEs. [NST]