When the first meal of the day is breakfast but the food eaten is lunch food. It's a lot more lunch than breakfast hence the name gets a lot more lunch than breakfast.
Man I just woke up and its already noon, blunch time!
Blue punch. No defined recipe, but usually includes things along the lines of UV Blue, Capt. Morgan Blue Hurricane, Blue Hawaiian punch, Blue Kool-Aid, etc. Mixed together and served preferably chilled.