when you are let down or dissapointed over text. also used for extreme sarcasm. the lowercase letters indicate casualness but the period completes the emotion. i cannot properly explain it's meaning in words, it is rather the feeling from seeing it.
you and your friend are talking about how you did bad on a test:

lauren: you sounded very unprofessional...
lauren: the writing was not right.
you: i know i am stupid i made a mistake
lauren: i don't care.
you: oh.
by mani 4 December 13, 2018
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One of the many noises you make during sexual intercourse.
Oh! Yes! Oh! Oh! Harder!!
by automatic___boy March 15, 2005
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From when yoko ono broke up the beatles. People started saying "ono!" When they heard the news, and eventually it evolved into "oh no!". There are no examples of the phrase "oh no!" Prior to this event.
by Togdar April 11, 2017
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a sarcastic way to say that you don't care about something
person 1; "my mom died"
person 2; "oh no. my bad."
by The One You Call God September 30, 2020
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An exclaimation, meaning that you are suprised in a good way.
Oh! It's my long lost brother Leo!
by Zach G. November 15, 2003
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Interjection. Usually exclaimed as one

1. Realizes something they didn't know before.
2. Has newfound pity on another poor sap.
3. Feels frisky.
4. Reaches orgasm.
5. Listens to Nelly's "Hot in Here"
6. Sees something astoundingly disturbing. Usually while cringing back in surprise.
7. Needs to get attention in order to say something.
Oh! I forgot to tell you...

-You know, I'm naked underneath all these clothes.
-Oh! You are, aren't you?
by SylfaenFlow November 17, 2003
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