Whaaan! 

Something you just yell out when you're bored or melancholy; similar to "blah"

Whaaan!

Whaaan! by G I N F U October 6, 2008

Whaaaa

This word is basically the word "what". Except for the fact that it has four "a"'s and no "t".
Whaaaa is a word to show confusion, shock, or just to show that you have no idea to what just happened. The word "Whaaaa" usually has a question mark behind it.

Paul: "I can't believe that just happened! Did you see that?!
Doug: "Whaaaa?"

Whaaaa by notnickiminaj January 4, 2011

Whaaa? 

When a guy is too blazed out of his head to utter words so he ignores the fuck out of the guy and says whaaa?

Darrius: 'YO jay pass me the spliff'
Jay: 'Whaaa?'

Whaaa? by MaryJaneLsd420 March 9, 2017

Whaaat you haven't played tuber simulator? 

Whaaat you haven't played tuber simulator? Wait seriously... Haven't you?

Whaaat you haven't played tuber simulator? - PewDiePie 2020

Whaaat you haven't played tuber simulator? by MrAdemola123 June 17, 2020

whaaa 

to question some one in a very shocked tone

Guy 1 - "dude i just screwed that hot chick, oh wait thats your mom"

Guy 2 - "Whaaa??!!??!!"

whaaa by JaxXxXx February 28, 2007

Whaman 

half whale/half woman

Look at that whaman, shes one huge beast.

Whaman by Jaysterdamus May 9, 2011

Whaaat 

to be amazed by something and you can't believe it is real. not to be confused with the question "what." it is an expression of disbelief or amazement. pronounces sort of slowly and with a higher pitch.

Guy 1: "Dude I banged the librarian last night"
Guy 2: "Whaaat"

Whaaat by Rich Peoples January 24, 2017