When something goes wrong. Can be used to express anger or disappointment.
Honestly, it's a bit crude, but this translates to 'shag a dog'. It's much the same a 'F**k a Duck', but a dog is more like a human than a duck is, so that's surely less offensive, and shag is a mild version of f*ck.
Therefore is a better fit for family dinner table usage...
Can be extended indefinitely with Popeye-esque "ug" post-fix : "Shuggadug-ug-ug-ug!"
Shugaduga(pronounced: shoog-ah-doog-ah) is a word of awesomeness. It is a verb(or sometimes adjective) meant for awesome things, most of the time pertaining to ninjas and ninja-like shtuff.
Can be separated: "I'm about to shuga the duga!"
Can be extended with more "-duga" and occasionally a "-do":
"Shugadugadugado!!"
Can also be used as a sound effect!(Best used for beat boxing.)
"And then the plane went 'Shugadugadugaduga...' across the sky!"
Alternative use: something similar to "Aww, yeah."
:D
Ex1: "Dude, I just totally shugaduga-ed across that park bench!"
Ex2: Bob- "Freddie, we just pwned those guys!"
Freddie- "Shugaduga!"
Ex3: "Dude, check out the toms on my air drum set!
Shugadadugadadugadadoo!"