A way to cover up bullshit by making the broad statement, "Experts say", then the bullshit.
As nobody has any idea which experts they were referring to, or what level or expertise they had, it is a great way to cover up not having a distinct source for the information.
A tired trope that is used in hundreds of headlines a day. The phrase that journalists deploy to be able to say whatever they want, without the need for proper sources. Most of the time, this phrase is used in the headline, or one time in the body text, without said experts ever being identified or mentioned again.
"Experts say that eating your own shit could lower your risk of proper digestive function. Here's why." - CNN
A word used by non-experts to make themselves sound like an expert. Has more syllables than the word expertise, thus the speaker attempts to sound more intelligent, but usually fails.
Eddie: "Are you finished yet dude? I have important things to do like watch mold grow."
Brandon: "I am trying to share my experticity with you, now that you are a single guy"
Eddie: "I don't get paid enough to have to hear this, go down the hall and share it with Ray."
The coded, obscure, and impenetrable language used among experts in a particular field, impossible to be understood by people not trained in that field.
"I didn't get a thing out of attending that seminar. The lectures were all in expertese."