Slinky, the urban dictionary

Phrase: "I dunno!"

Meaning: To not give a damn, to allow the other person to carry the onus of doing all the work by using those delightfully carefree two words to designate your apparent total lack of concern for putting in any effort at all. Can also be used to indicate how your are using said phrase to indicate inablity to work even though in reality it is more disinclination to work because you know that it will drive the other person crazy because they are total perfectionists thus driving the to distraction. Also used to indicate an almost life-theatening level of befuddlement when faced with results of said research, when other person needs help. Chronic use of said phrase may result in severe medical conditions such as scalpel in one's eye.