Fadodle
Fadodle is the fake word you use when you're too scared to say the real ones and too proud to apologize.
You spill your juice on the floor and say, 'Fadodle!' instead of 'Damn it!'
Your dad says you're gonna fail math, and you say, 'Fadodle!'
Your friend steals your snack, and you mutter, 'Fadodle.'