buck yeah
A phrase used for extreme excitement, especially when referring to amazing occurences and chance happenings. One buck yeah can lead to multiple buck yeahs, making it a dangerous phrase to use.
"Buck yeah, i just found an unopened box of cheez-its"
Buck yeah
A situation that is not ideal. It is considered a buck yeah situation.
Bob: I left my oyster card at home
Alice: Raw, that's a buck yeah situation you're in
Alice: Raw, that's a buck yeah situation you're in