fuck a doodle do 

means to be surprised or can be used for sarcasm

i am your long lost brother

well fuck a doodle do

fuck a doodle do by Top Shotterz July 31, 2011

fuck-a-doodle-dumbshit 

Some one who is a complete and total moron and can never do anything right.

That guy is such a fuck-a-doodle-dumbshit!

fuck-a-doodle-dumbshit by Rehteah Harrington June 14, 2009

fuckadoodle-doo

A blow-off term that is used when one does not care at all.

I just won tickets to the Star Trek convention!
Oh, fuckadoodle-doo! Who cares, dweeb?

fuckadoodle-doo by staccato brainstem February 12, 2005