A hypocrite who only pretends to care about someone/something to impress others, whilst secretly destroying it.

Origin:
In the UK during the Covid pandemic NHS staff & carers were dying because they were forced to work without proper protection.

Every Thursday at s a sign of support the nation stood on their doorsteps and clapped, and the the MP's directly responsible for the danger and underfunding did the same in front of the cameras and then carried on dismantling free healthcare and profiting from the crisis.
Did Naomi Campbell stop modelling fur after she did that massive anti-fur campaign?

Nah, she's just a Thursday Clapper
by Jemima True January 26, 2021
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it’s a day celebrating about how you get curved a lot by either a guy or girl you tried shooting your shot at
me: hey guys its curve me thursday!
friends: omg who’d you get curved by?
me: i got curved by fox
friends: omg i know how you feel i get curved all the time
by mowi wowi February 4, 2018
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In this day all y’all single motherfuckers get a boy friend or girlfriend. You can also ask someone out and if they say no then it never happened but if they say yes then enjoy yourself.
“He you Look single wanna date?” “Today is Get a significant other Thursday!”
by Lincoln’s wack October 17, 2019
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The weekly wankathon held in the Unkited Kingdom during the 2020 coronavirus lockdown, to prove which neighbours can caress their own egoes the most vigorously.
Emma didn't take part in the Thursday Night Shitefest because her neighbours made showing support for key workers into a battle between themselves.
by Brucie's Bonus Package May 24, 2020
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The last Thursday before Halloween.

On this day, like April Fool's day, you just play a trick on someone.

The only thing is, you aren't allowed to tell them it's a trick till the next day.

This is growing widely popular in schools and colleges around England, as it gives you an excuse to start a rumor and get everyone talking. There has also been, in some cases - a "Tricking Tuesday"
Samantha: Im pregnant
John: but we used protection
Samantha: I know, i dunno how this happened.

**John gets all wound up the whole day**

- then the next day:

Samantha: Gosh, John! You are so gullible. I'm not really pregnant! Happy Tricking Thursday ;)
by Fiva Flirta October 29, 2010
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A Thursday before a Full Moon Friday during American Football season where you indulge in "Buy 3 Get 1 Free" 2 Liters of Pop at the grocery and consume them throughout the day and then razz and troll your friends that are in your fantasy football league.
IT's THURPY THURSDAY.... I GUESS I'LL GO AND RAZZ AND TROLL MY FRIENDS WHO ARE IN MY FANTASY FOOTBALL LEAGUE.
by Yurt McGurt Seven September 28, 2023
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Thursday high means on Thursday, boys and girls are high to go to the Thursday night party. Party often starts on Thursday, because they receive their pay on Thursday. So they start honking and shouting, making noise when Thursday starts. That’s also called prelude for the Thursday party.
‘Thursday high is coming
by Thursday nigh high August 29, 2009
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