Jarbo the Hutt does more than just splicing though. This nigga wrote a database which converts videos to audio formats (mp3), automatically generates a timeline which matches to each YouTube generated script, and converts all that into a searchable entry.
Basically, he only needs to search for words he wants in his database, it will return an array to results with timestamps corresponding to the correct video(s). This lets him use different variations of the same word(s) in different tones, It's actually fucking amazing.