Cahoonas
Cahoonas is the English derivative of ''cojones'' used in US and British slang to denote “boldness, manliness and courage” and popularised by iconic films such as Pulp Fiction and British male underwear brand Cahoonas.
You'll need a huge pair of Cahoonas to go 3 rounds in the ring with that nutter.
cahoonas
n. as in a latino referrence of males genitalia
formal: "he has big cahoonas for standing up to Chico."