Green’s Dictionary of Slang

(UK Black) a hunting knife, a machete.

2014		Grizzy ‘Look Like You’ 🎵 My young nigga with the rambo / You’ll be getting jooked right through.
2016		1011 ‘Next Up?’ 🎵 Get round there samurais and flicks / JaySav put his whole rambz in your wig.
2017		1011 ‘No Hook’ 🎵 Got a rams on my waist.
2018		Headie One ‘Know Better’ 🎵 Twelve inch Rambo; dip mans chest.
2018-20		T. Thorne (ed.) ‘Drill Slang Glossary’ at Forensic Linguistic Databank 🌐 Ramsay - knife.