Slang Words that I Don't Understand

I'm sure there's some convoluted origin to all of these that makes SOME sense, but it's funnier if we just stick to a laymen's perspective here.

Intro and outro song:

"Brandenburg Concerto No. 4 in G, Movement I (Allegro), BWV 1049" Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License
http://creativecommons.org/licenses/by/3.0/

Видео Slang Words that I Don't Understand канала Sam O'Nella Academy