multi-purpose expression filling in gaps anywhere "you know what I'm sayin'" would work. Works for good news and bad news,greeting, and salutation. When you sense a situation you may use this word. Destined to be used in a Snoop Dog Video. Sums up a situation.
Yo Snoop, I like your televizzle. "Foilage."
Or Man I got grounded. "Foilage"