(march 27th! or so i've heard hehe.)

a day when "no" means "yes" and "shut up" means "keep talking" and etc..u do the opposite of what someone tells u to do.say the opposite things.blah blah blah.
a conversation between a girl & her boyfriend when theyre hugging on opposite day:

Girl: dont kiss me
Boy: *kisses her right on the lips*
by chass i licious July 7, 2005
Get the Opposite Day mug.
Opposite day isnt a real day, where you dont do the opposite. People will say nothing opposite. Every other day of the year IS an opposite day.

Oh, and you musnt be reading this on opposite day, or youll understand it. :( (and yes, the smiley isnt opposite)
Guy 1: Hai its opposite day
Guy 2: U LIAR ITS NOT NOW YOU SAID... BUT THEN IT IS! BECAUSE I SAID ITS NOT! ZOMG!!!!!1!11!!!
Get the opposite day mug.
Celebrated on April 30th, the opposite of April 1st. The day when you are nice to your boss, teacher, enemy and can be a complete Ahole to your best friends. You can just say the opposite of what you want to say, and confuse/laugh at all the people who dont know why you are saying what you are saying.

Because April fools, has become a cliche.

Also spelled yad etisoppO, and occipatai
Beanerous Brokus I -Did I ever tell you that you look great.

Guy - You muckfluck its opposite Day.
by Beanerous Brokus I July 21, 2006
Get the Opposite day mug.
¨hey you know how warner bros fired johnny depp instead of amber heard well it was opposite day¨
by pnatth January 5, 2021
Get the opposite day mug.
opposite day is every wednesday
kurt’s so ugly, but only on wednesday because it’s opposite day
by TexasAngel1887 June 20, 2019
Get the opposite day mug.
If it was opposite day Pokimane would be an amazing and super attractive streamer. Emphasis on IF IT WAS OPPOSITE DAY because Pokimane fucking sucks
by I eat poop 69 January 15, 2022
Get the Opposite Day mug.
On Feb 29. Each 4 years you will be punched if u speak without Bing back words
National Opposite Day is onece every 4 years and you can do all but say back words if a. Girl rejects u on this day she actuly is now your girlfriend/(*_*)\
by National opposed day February 26, 2020
Get the National Opposite Day mug.