PESCATARIAN came from the Latin word 'pesce' which means Fish and combined with the English word vegetarian. It simply means a person who do not eat meat but eats fish
LET US is combined of two words LET and US. Let means allow and US refers to the speaker him/herself and the other people who's taking the action / verb.
FIDDLING is an adjective that means petty or annoyingly trivial
WOOF came from the 19th century word meaning imitative. Woof is a barking sound of a dog.
ESTATES has different meaning and one of it is an owned area of land in a country usually with a house. It may also mean as a class or order in a political body. Lastly, it may also mean as a state, period or condition in life.