Slang term that holds the place of almost any adjective. Can be used as a positive or negative placeholder or for when you just forget the word you are looking for......
Did you hear what Carolyn did last night, that girl is such a hoobie-koobie
That Damn prick is such a hoobie-koobie
Did You see that frickin hoobie-koobie jump the tracks, dude is like fly
That hoobie-koobie just went and did it again
Where did you go and put that Damn hoobie-koobie this time
Where is that side beta when I need him, such a hobbie-koobie