The best way to learn proper English is to read news report, and watch news on TV. Watching TV shows is a great way to learn casual English, slang words, understand culture reference and humor. If you have already watched these shows then you may recall the words used in the following dialogs.

...before you gotta throw
a stick of DYNAMITE in the water?
The Big Bang Theory Season 1, Episode 4

Oh. If I had one,
it would be "Brown Dynamite."
The Big Bang Theory Season 5, Episode 15

They don't call me
"Brown Dynamite" for nothing.
The Big Bang Theory Season 5, Episode 15

It's also a live mine so there'll be
DYNAMITE explosions going off in the distance.
The Big Bang Theory Season 8, Episode 6

"shared a pumpkin latte
with a DYNAMITE lady"?
The Big Bang Theory Season 5, Episode 10