said when asking how or why something happened or is the case.
Person 1: "Tori, we're not coming to the party...π"
Person 2: "How come? π"
The Man is the head of "the establishment" put in place to "bring us down." Though nobody has physically seen "the man," he is assumed to be a male caucasian between the ages of 25-40 and is rumored to have a substantial amount of acquired wealth, presumably acquired by exploiting those whom his "establishment" is "keeping down."
"they've mastered their emotive grunge-pop without haggling with the Man "
In this context, it's typically used to catch people up on life events they might have missed on your social media. For example, you might text: βICYMI, we got a new dog in the house.β In this situation, you could also use βICYDK,β which stands for βin case you didn't know.β