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.

without him giving me his GOOFY thumbs-up?
"Hey!" (MOCK LAUGHS)
The Big Bang Theory Season 10, Episode 5

India's a GOOFY place.
The Big Bang Theory Season 4, Episode 20

When I met him,
he was a hot, GOOFY mess.
The Big Bang Theory Season 7, Episode 15

Goofy, Pluto, Mickey Mouse, all those.
Money Heist Season 1, Episode 1

have gone with the short one
with the GOOFY haircut.
The Big Bang Theory Season 7, Episode 1