Define Overnight Meaning

Overnight
To have sex with someone but to use an innocent and casual term so as not to arouse suspicion im the other party.

Do you want to stay overnight at my place this Saturday?
By Joann
Overnighting
To be sent overnight.
To ship or have shipped from one locale to another arriving the next day.

They are overnighting the documents for tommorrow morning meeting.
By Tiffanie
Overnighting It
A specific instance of "mailing it in," in which someone mails it very obviously and is extremely lazy.

That dude is lazy as hell, he's not only mailing it in, he's overnighting it.
By Leslie
Overnight Activist
A person who, upon seeing a political message on a social networking site, instantly becomes a die-hard supporter despite knowing nothing about the subject.

Jackie -OMG, I just saw KONY2012. Save the Children!!!!
Brenda -OMG me too. It's so sad that this is happening in Uganda.
Informed Individual- You know this has been happening 26 years and that the Ugandan gov did the same thing to get in power... overnight activists
By Athena
Overnight Snub
When you're messaging someone on a dating app and having a great conversation, yet after a night passes they no longer answer the next day.

Guy 1: "Dude I've been messaging this girl all night she seems great. I think this could actually lead to something"
Guy 2: "Bro that's awesome"
*Goes to sleep, 1 night passes*
Guy 1: "She's not answering anymore, wtf I totally got the overnight snub!"
By Nara
Overnight Sensation
When a certain unknown person becomes famous in a supposedly short amount of time, usually a day or a week.

Miley Cyrus was an overnight sensation after she was cast for the show Hannah Montana.
By Gilbertina
Overnight Oats

Tom's in a good mood today - he must've had his overnight oats.
By Ingaberg
Overnight Emails
The emails you find in your in box that get sent to you when every one you know is asleep. These will include offers of generic Viagra, penis enlargement, unique but unspecified business opportunities, lotto or prize draw win notification and of course the classic 'help me share my $5million' offer from a man who may or may not have been high up in the Nigerian Finance Minestry.

Tim started each day at the office, mucking out his overnight emails. How he wished he hadn't filled in his email address on the site that offered cheap Viagra.
By Catherina
Overnight Celebrity
Someone(typically a female) who has sex with another person in exchange for money/valuables/gifts

"i cant get sex for free and i dont want a prostitute,so i think ill get me an overnight celebrity" - Probably said by Twista when he came up with the idea for the song
By Deana
Overnight Subscriber
someone that is up in the middle of the night while you're asleep and randomly subs u. or someone in a different timezone randomly subs u.

i gained an overnight subscriber 3 times in a row and i would usually get 1 sub per week or so.
By Alejandra