The point of no return theory is when you take a member of the opposite sex (usually female) home to have sexual relations/fellatio. As you take off your clothing, she realizes that you have a tiny penis and/or a beer belly, but since you have already gotten to this point she might as well hook up with you--hence the point of no return. Essentially, a common bond amongst the ugly people of America where hope is found.
Once my pants came off she had to keep going--proof of the Point of no return theory.
by TittySwass March 17, 2013