"bussy burst " is a phrase used when you are bopping your bussy to a great song and then a song such as Welcome To The Black Parade by My Chemical Romance or Northern Downpour by Panic! At The Disco randomly plays with no warning making it a bussy burst.
me: *puts triggering song right after a bussy bop*
Frank: *gets triggered in the middle of a bussy bop so his bussy burst*