Rambo

From Wikipedia, the free encyclopedia:

Rambo is a series of popular action films starring Sylvester Stallone, based on the characters created by David Morrell in his novel First Blood.

The films are: First Blood (1982), Rambo: First Blood Part II (1985), Rambo III (1988), and Rambo (2008). The films focus on a troubled Vietnam War veteran, John James Rambo, who is greatly skilled in all aspects of survival, weaponry, hand-to-hand combat and guerrilla warfare.

In popular culture, the name has become an eponym for a tactic of military aggression or, alternatively, a person demonstrating heroism through extreme violence, especially when outnumbered. However, the term can also be used somewhat derogatorily to describe someone who thoughtlessly charges into a fight with no regard for personal safety or careful planning. This term is commonly referred to as "Going Rambo".

Further reading:
Rambo Wikipedia article
Sylvester Stallone