Rambo was both the name of a film and its protagonist, John Rambo, a soldier known for being exceptionally tough and aggressive.
Kevin Stoney had seen Rambo, having rented it from the local video shop. When he got a gun away from one of his captors, he found that handling it in real life wasn't quite the same as shown on the film. (PROSE: The Nightmare Fair [+]Graham Williams, adapted from The Nightmare Fair, Target Missing Episodes (Target Books, 1989).)
Ace referred to a Marine sergeant who mocked her as "Rambo". (PROSE: White Darkness [+]David A. McIntee, Virgin New Adventures (Virgin Books, 1993).) She later referred to Captain Lysandra Aristedes as "Rambo". (AUDIO: Project: Destiny [+]Cavan Scott and Mark Wright, Main Range (Big Finish Productions, 2010).)
On 24 July 6012, Donna Noble referred to Cline as "Rambo". (TV: The Doctor's Daughter [+]Stephen Greenhorn, Doctor Who series 4 (BBC One, 2008).)
Rani Chandra called Clyde Langer Rambo after he fought off the Krulius. (COMIC: Defending Bannerman Road [+]Error: Code 2 - no data stored in variables, cache or SMW.)
During the City of the Saved Civil War, hundreds of Remakes of John Rambo were created to fight. There was a POW camp created just to hold John Rambos. (PROSE: A Hundred Words from a Civil War [+]Philip Purser-Hallard, et al., A Romance in Twelve Parts (Faction Paradox, Obverse Books, 2011).)