TOM-NAM-NAA. (my phonetics my not be correct but thats what I hear!)

My GF says it to me often (as a joke!) I know its not exactly polite but i dont know what it means. She speak little English and I speak less Thai (but we are both working on it!) I'm guessing it has something to do with water bwcause of 'NAM'

Many thanks for any help!

It's 'som nam naa' and it's an idiom that means 'It serves you right!'

Edited September 24, 201015 yr by SoftWater

ahh!! now i get it! thank you softwater!!

There are probably two meanings for "som nam na" - it serves you right.

1, When the phrase is used by the one who dislikes or hates you, it implies that he/she(the speaker) is happy/satisfied when you are suffering with something bad happened to you. And you will hardly hear the phrase i.e. the hater never speaks before you / in public.

2. If used by your sweetheart or confidant, it is just a joke or tease. You will hear him/her uttering it before you.

In your case, I assume it is of item 2.

There's a pretty exhaustive discussion on 'fits your face' in an earlier discussion thread here

http://www.thaivisa.com/forum/topic/94337-what-is-som-nam-naa-in-english/page__hl__fits+your+face