It means urea breath test, basically a procedure for diagnosing the presence of a bacterium that causes inflammation, ulcers, and atrophy of the stomach.
It's an onomatopoeia that I imagine sounds kind of like a hiccuping noise
Could also be Uncle Bad Touch ...
Someone being incapable of making cohérent sounds because of a certain fox
Ugly big tits
I also read that in google, but I don't think that is. Doesn't make any sense with the context. But thanks
what
the fact i know which manhwa this is-
UBT KUKUK UBT KUKUK
Someone here knows what "UBT" means? I have been seen that in some manhua that I read but I don't understand what they mean whit "UBT"