Trigger may refer to: Notable animals and people. Animal. Trigger (horse), owned by cowboy star Roy Rogers. Nickname. Trigger Alpert (1916–2013), American jazz bassist. "Trigger Mike" Coppola (1900–1966), American gangster. Surname. Bruce Trigger (1937–2006), Canadian archaeologist. Damon Trigger (born 1972), New Zealand born former English cricketer. Hannah Trigger (born 1987), Australian snowboarder. Ian Trigger (1938–2010), British actor. Technology. Trigger (firearms), a mechanism that actuates the firing of firearms.
https://en.wikipedia.org/wiki/Trigger