When you accomplish something and you want to express your happiness
Just got an A in a test!
Nice one mate!
I know right! Shadoink!
An expression used when you accomplish something and you feel the need to celebrate
"I passed that test so easily, like shadoink!"
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An expression of joy and accomplishment.
I did well on the test, shadoink!
Connor: what do else do you want me to do?
Sapphire: shadoink
Connor: okay you and I can shadoink
Sapphire: no you shadoink me ;)
The act of the penis going upward as if to say, "Hi...I like you." It's like 'Shwing' in Wayne's World but better and updated into the new millennium.
Damn girl you fine...shadoink!