an extention of the word fail, like epic fail, super fail and (insert your word here) fail. Failduck is normaly something some one say to another person after an in-successfull attempt of something.
Me and Stacey were making out the otherday, serious??!?!?!, we were gunna go fourth base but i didnt have a condom:/, .....Failduck
Dozzy is a form of saying sorry in a kind of "ahh sorry mate LOLOL" type way, its not a very serious phrase and is abrieviated from sorry to sozzy to dozzy. can be extended to dozzycopter.
did you get me that cd?, dozzy>.<
TRALALALALALALAALA, DUDE..STFU, dozzy