"You suck"

[BballRookie]

So help me get this straight: (in broad terms, the last being where I'm confused)

Intentional: end of game, team A needs a foul and clearly is not going for the ball when they push a member of team B. Not too crazy, but they'd been warned.

Technical: player drops loud f bomb, coach gets carried away, etc.

( here is where I'm confused)
Flagrant Technical:
A punch is thrown(that one is fairly clear, I think).
Low bridge, if intentional?
Saying "you suck"? (seems like a tech and a zero leash IMO)

With the administration of this call, do you point to the door, signal a tech, then clarify with the table the level of the technical?