game master's screen; GM's screen
A folding screen used by a game master in tabletop role-playing games to hide notes, dice rolls, and scenario materials from players. Wasei-eigo from English 'master screen'.
wasei-eigo (Japanese-coined English), from master screen
See also: ゲームマスター
The game master rolled the dice behind the GM's screen.
Useful charts are printed on the new game master's screen.
Variant spelling with interpunct; less common but seen in some contexts.
Wasei-eigo from English 'master screen', referring to a game master's screen in tabletop RPGs.