Funky is a very hard word to translate as it has a few different meanings.
On the one hand it can refer to a strong, unpleasant odor. For example, someone's breath can smell really funky! (not a compliment)
In regard to clothing it doesn't mean fashionable but rather the opposite-outlandish, clashing etc. For example, if a woman walks in with a checkered outfit in bright purple, yellow and green..it might be very original but people will say, "Wow, did you get a look at the funky outfit she was wearing?" (not a compliment).On the other hand if it is weird looking but interesting then it can be complimentary . For example sometimes a shirt or dress can have an outlandish pattern that strangely enough works so that people will use the same word to compliment it such as , "Wow, that shirt is funky!" or "I love that funky purse!"
The same can go for a funky room, it can be so wild it is horrible or weird and yet very cool , for example a hotel room set up to look like a room in a cruise ship complete with boat-like port windows and decorations is a bit weird but can be very enjoyable.
In music, Funky refers to certain types of jazz or soul music with a strong, rhythmic beat.
"Get funky" is an even harder expression to translate. Its simplest meaning is to go a little wild and crazy in dancing or partying behavior -not to the point of obnoxiousness but to be a little less inhibited.