The FBI recently released chilling tapes of ISIS terrorists using coded language to discuss terror plots, some that could unfold right here in the U.S.

Cryptic phrases such as “peanut butter and jelly sandwiches” from “culinary school” are actually code for terrorist attacks and training camps.

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Colin Clarke joined Tucker Carlson on "Fox and Friends Weekend" this morning and said that just like Al Qaeda, the Nusra Front - Al Qaeda's affiliate in Syria - and other terrorist groups, one of the eventual aims of ISIS is to attack the West, and these code words help advance that goal.

Clarke noted other common terrorist code words have been "wedding" for terrorist attack, "rap concert" for a training run before an attack and "rash" or "skin disease" to signify when one is under surveillance.

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While our enemies using codes is nothing new, how we have been cracking ISIS's codes is more unique, according to Clarke, who revealed much of our information on the secret language of ISIS comes from open source intelligence, such as Facebook and Twitter.

“Oversharing or ‘TMI’, as they might say, it’s a trend among millennials, and that extends to millennials who might be terrorists or terrorist sympathizers,” Clarke explained.

Watch the clip from "Fox and Friends Weekend" above.

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