The phrase "load of bunk" means something that is considered to be nonsense, foolishness or rubbish. It's an idiomatic expression used to describe a statement or idea that is not credible or believable.
As a health junkie always on the hunt for a good shortcut, I decided to find out if the simple intervention was a magic bullet — or a load of bunk. (mindbodygreen.com)
To the person who thought her boob implants were so distracting that it made her article a «load of bunk.» (greatideas.people.com)