It's not quite as funny a title as Dumb and Dumber To.
Which is hilarious. Not seen the film itself but it can't be as shit as the prequel looked.
EDIT : Dumb and Dumberer: When Harry Met Lloyd
You know it's going to be shit when it has no number and a subtitle.
I don't know why but straight to video sequels from a different cast and crew ALWAYS do this. I don't know why.