1. To be over-eager and excitable in an annoying manner.
2. Behaving in an over-excited, over-zealous, hyper manner...normally said just before you get kicked out the room
3. Behavior that could possibly result in one being touched on on'es studio
The journalist was being tjatjarag to keep interjecting with stupid comments while the Youth League president was making his speech, rather than waiting for question and answer time like a civilized human being.
Example 2: The NPA is being tjatjarag. We want less yada yada, more ching ching (as used by a protesting public prosecuter).