The first time I heard it I thought it might be a mistake on the part of the speaker, but then it kept cropping up so I realised not. I quite like it, I think, though I don't think I'd use it myself.

I suppose you might not be able to answer this, as you didn't know it wasn't widespread until your MIND was BLOWN, but does it have any particular connotations? Are there situations that you'd use it for but not others?