People will often use phrases or words without understanding their origin. Where a phrase comes from a lot of times can really influence what that phrase means and in what context. Here is an example. I recently saw the word "Okay" typed out on the internet. I couldn't help but to chuckle to myself because "Okay" is a phonetic spelling of an abbreviation of a phonetic misspelling of a phrase.
As it turns out in 1938 in Boston there was a fad of purposely misspelling words and phrases. OK is an abbreviation for oll korrect. To see that it has sense been converted into an onomatopoeia of the abbreviation, of the phonetic phrase makes me laugh. This is a long explanation of a short word, but you catch my drift. One should always be mindful of the meaning of their words even if you think they understand the meaning of their statement.