Rambo is an adjective for someone who is unhinged, violent, or adrenaline-filled. The word comes from the movie series of the same word.
Rambo is also the last name given to John J. Rambo, the protagonist of the Rambo movies.
"Jesus, he's going fucking Rambo!"
The best cereal, if anyone says otherwise they are most likely gay
Bob: mm, I love captain crunch.