Learn Korean slang from dramas 껄떡거리다 Big ep 10

So here's a screen capture of Gil Da Ran getting told by Kyung Joon (in Yoon Jae's body) to not be 껄떡거리다 all over him in Big ep10.

껄떡거리지 마 is his more exact words

The scene is followed by Gil Da Ran thinking through the word and this next screen actually appears in the drama.

Yay! Definition of a Korean slang from a drama.  If that wasn't clear enough on how it's used, toss it into the online naver dictionary and tadaaa! more examples on how to use the word =)