Anecdotal evidence presented as fact by unqualified, yet confident indvidulas in the body building community.
Rampent within liftring forums and message boards, the information is usualy based on hearsay with little to no scientific evidence to support the claims made by the individual.
Examples can be limited to a single fram of mind: It worked for me, so it works the same way for everyone!
There is actually a forum that is called broscience dot com that caters to these claims.
An example of Broscience is as follows:
If you want to cut fat and get muscle definition, do high reps, low weight
Prices shown in USD.