제목학원 is a relatively new online term. The closest English equivalent I could think of off the top of my head right now is "online memes" -- you know, those pictures with funny quotes or titles? Yeah..

Guess it's a particular web community where people post funny stories and name the titles(제목) that suit perfect and if it is funny, then people think you are funny as if you studied at an academy(학원) or something. haha https://www.facebook.com/jaemok2 take a look :D