Some of these are not unique to the DR.
guagua = bus - also used in
PR and Cuba
guineo = banana - not very common elsewhere but also used in some parts of Nicaragua, possibly also Ecuador (IIRC).
bulla = noise - not unique, I've heard it used in this sense in South America. In southern Spain though it means 'in a hurry' - as in 'se caso de bulla' = shotgun wedding.
acera = sidewalk - this is the standard Spanish word
polocher = golf shirt or tee-shirt - Spanglish - from 'polo shirt'
franela = same as polocher - also used in Venezuela and Mexico among others
I think 'un chin' is unique, as well as other Taino/African influenced words.