What is Magic Merlin?
1.
A heroic act or miracle that's usually unexplainable or thought impossible. It always saves the day and leaves people stupefied at the level of awesome you have achieved.
Guy: "Sorry, honey. The parties off."
Lady: "But you said you would throw me a baby shower!"
Guy: "Sorry, it just didn't work out"
Guy's friend: "Dude, don't worry, it's on. I pulled a magic merlin."
Guy: "Thank god!"
See