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.

the entire DUMP truck off the tracks,
which, you know, is what he does.
Breaking Bad Season 5, Episode 11

and DUMP your bodies
to the bottom of the Shivering Sea.
Game of Thrones Season 5, Episode 8

and I do something stupid
and DUMP you again?
The Big Bang Theory Season 5, Episode 13

Every time we go someplace,
you DUMP me...
The Big Bang Theory Season 3, Episode 6

I'm afraid that if I ask her to move out,
she'll just DUMP me.
The Big Bang Theory Season 2, Episode 10