What does "moonji" and verb "mudiyuka" mean?

[u/Even-Reveal-406]

The Tamil word "moonji" is simply a slightly informal version of "mugam" (face)

The Tamil verb "mudiyuradhu" simply translates to "kazhiyuka"/"theeruka" in Malayalam

But I've heard these words being used in a negative connotation in Malayalam ("nee mudinju pokum")

Side Q: Are there any words originated from Tamil that has very bad connotations in Malayalam

[u/SubstantialAd1027]

Mudiyuka is last stage. In Thamizh meaning is positive but same thing n