1. Generally speaking, it refers to the singing place mentioned by the previous person, and it is also the most commonly used.
2.KTV rooms (different from 1, 1 refers to stores)
3. When chatting with some netizens, KTV= watching TV (K is the initials of watching, and TV is the English abbreviation of TV).
In some unhappy times, ktv means brain-dead, which refers to those who watch TV like brain-dead. . .
There are also netizens chatting (K), kicking (T) and making victory gestures (V).
To sum up, I feel that you should ask the third or fifth ~ ~ ~