OK
In the 1840s telegraph communications via Morse code became a reality on th east coast of the United States. Telegraphers strove to use shortcuts in messages which would clarify the messages and complete them more quickly. To this day a letter k _._ or "dah dit dah" in morse code is transmitted at the end of each completed message, which is a question asking "have you got that ok?". The receiver then transmits an r ._. or "dit dah dit" in response which means, message received ok. The telegraphers paraphrased the k and r to "ok" and "roger" which both remain in the common parlance today. Although other more esoteric origins of "ok" exist, they were not in the common parlance at the time that telegraphers, train conductors and engineers popularized their use in the 1840s. The term spread to England and Continental Europe (even non-english speaking countries)as telegraphy spread to them. The principal of establishing a "handshake" in communication in this way (utilizing complimentary status bits regarding segments of messages)is used to this day in advanced digital communication devices.
The Urban Dictionary Mug

I love it! Thanks! So
Great present for a retiring colleague with custom saying she's known for!

Loved this mug! So unique and you can edit the text to add something unique.
I gave it to my friend who took money from me and never returned.
I love the fact that I was able to customize my name since I've never been able to find anything with my name. The only downside is it's smaller than I thought it would be (I guess I didn't pay much attention to that), wish it was bigger, only about 10 oz total.
It's simply awesome; and plus, the word means a lot.
Really fast and looks great! Took a chance on Christmas gift and it was a success!
Awesome mug feels really nice good weight and color although I think the shade could be a little brighter when it comes to the highlighter yellow, I am still pleased with the outcome and the fact that a whole passage was so neatly printed onto the product, very pleased with the packaging too! That made it so easy to wrap just in time for Christmas. Who knew!!
okay so the mug was mid but when you have a genz meme and give it to one of the most serious people you know then it's pretty funny
Nice mug, great feel‼️
Perfect!
Good quality ceramic cup! Worth the novelty price!

Perfect gift for my gf
Looks great! Came quick
Gave it to my nerd brother. He used it consume liquid

Love it

as a fan of non-Z-generation-UD (since 2000 more or less) , especially of old-school definitions ("phat!") (as Nick, the more time passes by, the more I reach my inner age = 75 XD) , I totally appreciated the delivery in time for Christmas! (whispering) Perhaps printing quality in the Spain printing company is not as good as in the US, but - hey! - I got it before Christmas as a gift for my thank-God-non-Gen-Z-sister! ;) hugs from the eighties, and from Italy, and thanks! Mario
This is SO cool. Morning coffee will always memorialize my new addition to the English lexicon.

Too inappropriate
Item came at appropriate time in good condition.
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