What is Hmmmm?
1.
Used when monged out when pondering something of maximum simplicity!
Chris: Whats the first letter of the alphabet?
Jonny: Hmmmm......
2.
Interjection: An expression used to ridicule an idiot who says something stupid; usually done by the ridicular directly into the idiot's face; must be done in context, with tightly pressed lips, a shit-eating grin, wide open eyes, and a parkinson type head shake.
Yarv: Dude, you shouldn't have done that.
Shooty: (Directly in Yarv's face) HMMMM...Kyum on Yarvie!
Yarv: Whatever.
See