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
1) a koodie is when someone is being very "slow"
2) using it in the term "koodie smacks", say it when you want to just hit someone because they said something so stupid.