A social mistake
faux pax
Another word for "expensive" or "for rich people"
posh
A short period when someone does a lot of shopping/spending
shopping spree
Expression for when you don't really want to do something
Not really up for (something).
To suddenly become very excited
go mad
To invite a few friends over
Have a small get-together
Place to sing with you friends
Karaoke
Not work or study during the weekend (maybe travel)
Weekend break
What is it called when people decide to go to a club?
go clubbing
To do something good and pleasurable for yourself, but not something necessary
Treat yourself to (a day in a spa).
To throw a big party can be also called...
To have a big do