A safeword, as used in sports, is a code word used by a player to avoid impending injury.
Professional rugby union footballers recognize the safeword "neck".
Players on both teams will recognize this and immediately release any downward pressure.
[citation needed] A more common example is "matte" (pronounced "mah-teh", meaning "Wait!")
in most Japanese martial arts, including judo, which indicates surrender, usually due to an arm lock or a choke.