chill

chill - slang - verb - means:

to relax and do nothing

'chill' as an imperative means: calm down

Orange Cones ...

... is the expression for these plastic/rubber things that they put up at construction sites.

sewer

A sewer is a hole at the side of the road where the rain water runs away.
If the sewer is too small, the road will be flooded.
This happened in July here.

'sewer mouth' is an expression for someone who swears a lot.
This is because sewers take away the water from toilets.

"Curiosity killed the cat."

... is an expression that means: you should not be nosey and pry into other people's business.

This expression comes from the way cats are curious about anything new, and sometimes get into dangerous situations.

KPI

"KPI" is an expression in business, meaning "Key Performance Indicator".
KPI's are ways of measuring an employee's performance.
For example, if you are a salesman, the amount of your sales is the most important KPI.

green screen

'green screen' is computer slang for the old type of computer that we used before Windows PCs.

'green screen' computers did not have pictures, only letters, and usually only one colour.

flood

...

We had the biggest storm since Hurricane Hazel (1954) last month. It ripped the concrete blocks out when the creek became a torrent.