Top Definition
1.) Its weird, but cool

2.) It could be the dumbest idea anyone has heard but they come to realize that it works smoothly and eloquently.

3.) A more relaxed way of saying, "it seems kind of lame, but i like it, its cool.."
Person 1: I built my tree house out of plastic.

Person 2: That's pretty erfy bro!
by Mike W. (Aka) Superman February 15, 2009
7 Words related to Erfy

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