C-Suite

It's slang for the offices where the C-Level officers work. You know, the ones who get the waterfall in the executive washroom with the guy who hands them towels to wash their hands (and another guy who hands that guy towels to wipe off the towels he hands to the executives). CEO, COO, CFO and, these days, CTOs all get keys to that washroom (and the rest of the C-Suite).