"boring or non-sense ad-lib and gag" is "개드립"(kae-dŭ-rip) in Korean.
The Gae-drip (개드립), It combined with 개 (dog) + 애드립 (ad lib), meaning ridiculous, super boring improvisation and gag thing. 개 (gain) is attached to the front of the noun, used in the sense of such Super. ※ well in vulgarism to taunt our opponents with a Korean we can use the word "개 (dog)".