Many terms/phrases are regional. As I never understand half of the words my teenage grands use, I'd say age is a demographic factor.
Today I feel knackered! (a Brit term for tired or worn out)
Some words, toot berries comes to mind, are family specific.
New words/phrases are added yearly. One add to the OED in 2020, which I like, is adj. awesomesauce, for extremely good, excellent. (Siri doesn't know it yet and chooses to underline it or respell as she does often with my southern dialect when I talk my text.) Certainly the pandemic has added terms; anti-vaxxer, & pandemic brain, which often refers to fogginess when trying to focus, concentrate or make decisions along with
But I digress as I often do. Think excursus....a digression in a written text. (Latin-"excurrere")
I often think of it as allowing my mind or mouth to go on an excursion away from a main idea.
But God....in His word simply reminds me---let my yes be yes and my no be no as no other oath is needed. (James 5:12) I mean what I say and say what I mean when sharing God's truth.
Ecclesiastes 5:2 reminds us to let our words be few.
No fancy words or lingo needed just simple truth. (Proverbs 17:27)
Walk the talk of gospel truth.