Top definition
something you say when u dont know something or have nuthin to say
1)wat r u doin? (ur not doin anything) i dunoo
2)who do u like? (the girl/guy that everyone likes as always duh!) i dunooo
by adamchu May 11, 2004
Get the mug
Get a i duno mug for your fish Bob.
buy the domain for your diy blog