Country Dictionary

An often used expression from the Regular Show used as an affirmative statement and
also as a sarcastic way of saying "I told you so" or "You are ignorant".

After blocking a death punch from Rigby, Mordecai said
"Hmmm. Hmmm. You are never going to beat me at punchies!"

an utterance made by those in the act of thinking. represents more thinking than hmm, but significantly less cranial activity than hmmmm.

hmmm

wow. This individual is thinking quite hard, it's only a matter of time until he reaches hmmmm level thought

It is mostly said by a girl when you are proposing her..

You : Ily

She : Hmmm

An expression used in response to a questionable comment or statement.

Guy: MY phone was having bad reception all night, that's why I never answered your call.

Girl: Hmmm

Something one says when nothing else can be thought of

Tony: I really enjoyed last night!
Emily: Hmmm...

HMMM

HMMM

An especially annoying phrase that a boy will say or text you when you are trying to have an at least semi-meaningful conversation.

Me: I miss you, and I can't wait to see you again.

Annoying Boy: Hmmm

Me: Not the reply I was looking for...