A combination of things. Usually in a hectic and chaotic manner, but connected enough to make sense. Similar to concoction, but with less measuring. Like Jumble, but with more cohesion. Usually each part of a combobulation is different and ridiculous enough to require a use of the word "combobulation".
Should always be used in the manner of: _____ is a combobulation of _____, _____, and _____.
Never: i combobulated _____ out of _____, _____, and _____.
What the hell, this food is like a combobulation of feces, stognaoff, and crackers.