COBs what does it mean, the acronym????

Sorry here for the newb question, I can't for the life of me figure out what it is.
I get what they are, but what does the acronym mean.
Thank you In advance

Chip
On
Board

I thought it meant
Circuit
On
Board

Thank you

chip on board
https://www.digikey.com/en/articles/the-basics-of-chip-on-board-cob-leds

Oh I thought it meant

circular on bright

C*nt
or
B*tch

I gots ghetto cobs

Call
Of
Booty

Chill
Or
Bang

Now ladies … you seen the green … how about a Stem Rub ?