look up any word, like dirty sanchez:
 
1.
mad; insane.
He is completely doolally.
by dan February 22, 2004
 
2.
Gone A Little Bit Dafty
Girl:Ah, Look, Bob's Gone Doo-lally!
Boi:Aye,Pet,Bob's A Dafty Mare
by .::Nicole::. April 06, 2006