The term 'Killer Snake' can be broken down into two crossword solutions: ASP, which is a three-letter acronym for the venomous snake species, and KILLER, which is an adjective describing the snake. The ASP stands for 'Armed and Dangerous Species of Pit Viper, ' which is a type of venomous snake found in the Americas. The word KILLER is used to describe the snake's dangerous nature, as it is capable of killing its prey with its venom.