Widen your vocabulary in English is something you should do everyday. Here you have some phrases you may find useful:
Quit your yapping
You say this when you want someone to stop talking:
Quit your yapping and do something!
Pump your talent
You say this when you want your talent to be used.
my talent has been underutilized and it needs some pumping.
Make a solem oath
You say this when you swear  something and you will not break your promise
we made a solem oath on the Bible.
To be a windfall
You say this when you get easy money, money for jam.
That’d be quite a windfall, I don`t have to do anything and I`ll get tons of money!
Go downhill
You say this when the quality of something decreases
This place used to be so nice but now it  has gone downhill