go·ril·la 
/gəˈrɪlə/ noun
plural go·ril·las /gəˈrɪlə/ noun [count] 1 : a type of very large ape that has black fur and that comes from Africa — see picture at ape 2 informal : a large, strong, and usually ugly or frightening man
▪ She hired some gorilla as her bodyguard.
▪ She hired some gorilla as her bodyguard.
800-pound gorilla
US, informal : someone or something that is very powerful and difficult to control or ignore
▪ Their company is the 800-pound gorilla of the computer industry.
▪ Their company is the 800-pound gorilla of the computer industry.
