1) Comedy role-playing game 2) Universal role-playing game 
Risus: The Anything RPG is a rules-light generic role-playing game (RPG) written, designed and illustrated by S. John Ross of Cumberland Games and Diversions. Risus is available free on the web. It was first published online in 1993. Earlier versions of the game were titled GUCS: The Generic Universal Comedy System (a parody of GURPS) and were dis...
a laugh; a grin
(ri´sәs) Latin word meaning laughter. risus sardonicus a grinning expression produced by spasm of the facial muscles; seen in tetanus and certain types of poisoning.
Type: Term Pronunciation: rī′sŭs Definitions: 1. Laughter.