Rambo
Concise Oxford English Dictionary © 2008 Oxford University Press:
Rambo /ˈrambəʊ/
▶noun an extremely tough and aggressive man.
– origin the hero of David Morrell's novel First Blood (1972), popularized in the films First Blood (1982) and Rambo: First Blood Part II (1985).
'Rambo' also found in these Oxford entries:

