I hear this used all the time with various meanings ranging from "being fully committed" to "being brainwashed". It usually implies a naive level of (or just mi

I hear this used all the time with various meanings ranging from "being fully committed" to "being brainwashed". It usually implies a naive level of (or just misplaced) zeal but I feel like folks rarely mean the suicidal/homicidal part which can make the phrase quite shocking if you actually think about what is being said. Language and culture are weird.