I read through the various reviews and it would appear that many either hated this film or thought it a brilliant piece of avant garde comedy. I decided to give it a try and I'm afraid to say that the title appears to refer to the film itself and not the character, as intended. I understand what the writing team of director(Bravo) and main actor(Gelman) were trying to do but they failed miserably in their attempt to make a "squirmy" comedy. I enjoy the uncomfortable type of comedy a la Ricky Gervais but this film never finds the humor in any of the contrived situations. The main character (Brett Gelman) is someone who, in real life, would never be able to function in the world. He is shooting for a socially awkward person but instead, has created a vile, spiteful, and completely dysfunctional man-child that leaves no opening to like in any way. A person who cannot perform the smallest of social skills would not have been hired as a drama professor in any college. We are supposed to believe that a beautiful and apparently sweet, normal woman (Nia Long) would go out with this man who appears to have just landed from Mars, THEN consent to another date after a clearly failed first meeting AND then invite him to her meet the family (in a rather sadly stereo-typed gathering). To drive home the point that this person is a "lemon", he is married to a blind woman who will not allow him to touch her and dates other men---it's so funny(no, it's not). There is a gathering of the Lemon's siblings at the parent's home and, again, no humor ensues. I could not tell if there was even a script for these scenes or if the actors told to just improvise.
The film is just a conglomeration of contrived, solemn scenes that, I suppose, certain hipsters are interpreting as cutting edge comedy. It's so funny because it's not. Get it?
What's really sad is that there is a large cast of talented people(the reason for 2 stars) and all are given absolutely nothing to do but swim through this muck.