1. ‘She served’ is a Gen Z slang which used when someone performed an impressive look or talent

This is going viral in Thailand as Billkin used it during the interview by saying it without any meaning. People started using it for everything

2. ‘Rice’ / to continue the sentence Thai used the word rice so it turned into ‘she served rice’

3. ‘Buck teeth’ or ‘เหยิน’ is a Gen Z Thai slang which used to express the feelings of happiness/shyness to the point that you’re unable to keep your mouth closed 

4. หยอง ‘hyong’ is used as a filler word for ‘เหยิน’ but when combined with moo (หมู) it’s หมูหยอง which is dried shredded pork so when he heard ‘hyong’ he thought of dried shredded pork

5. moo deng : the famous Pygmy hippopotamus from Thailand

6. ฮอป ‘hop’ is similar to เหยิน but the opposite is keeping the mouth close the best you can

In conclusion, there is no meaning in this sentence.