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Acronym for "Fuck Their Shit Up", meaning, "Let's expose their lies". Now primarily used by the MRM (Men's Rights Movement) to bring about the reality of feminism to the world.

This is in response to the feminists' mantra "Shut The Fuck Up" (STFU, which is also a mainstream general purpose acronym), which they chant as soon as someone speaks up for the men's rights.
A: The feminist professor today said in the class that there's no sentencing disparity among the rapists based on their gender.

B: Look at this woman's case charged with 53 counts of rape and getting only 3 years with 8 year probation. Compare it to Jerry Sandusky's sentence who was charged with 48 counts. Make the masses aware. FTSU.
FTSU by dhanumis456 July 21, 2012
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"Fuck Their Shit Up". Made famous by 'A Voice For Men' website.

Most frequently applied as a response to feminist ideology and practices, but can be used in any context.
Example 1. Feminists want to limit the number of males gaining entry into university, we need to actively FTSU.

Example 2. The skinheads are trying to preach hatred of ethnic minorities, let's FTSU.

Example 3. There is a nest of termites trying to eat away my house, I need to FTSU, and quick!
FTSU by David Thomas July 27, 2012
Related Words
Damnit you guys, just FTSU already!
FTSU by WADIE May 13, 2003
1:to Fut the shuck up; used when not wanting to curse in front of parents or siblings. and also to make someone who doesnt know the meaning of it look stupid

2. used by lysdexixs to say shut the fuck up

loosader: HAHH! U R AN EFFING NOOB!
Coobalie: |)00d just FTSU
loosader: QUE?
Coobalie: HAH WHUS TEH EFFIN NUB NOWE
loosader: yeah.... um /cry
FTSU by Dragon5 October 20, 2007
Fuck This Shit Up
Guy1: Let's do this!

Guy2: Yeah! FTSU!
FTSU by STEVENOFAIDSLANDOFFIRE December 14, 2010
Fuck that! Shut Up!!! or
Fuck The Shut Up, like the bedt response back to someone said STFU to you!
friend A: U better STFU, u mofo!
friend B: FTSU! im gonna tell, im gonna make sure everyone one in the world know about what you did to friend C, just wait for it!
FTSU by M.B.F. February 7, 2024

Stealthie 

when you're holding up your phone and making faces at it, as though you are taking a selfie, but you're really taking a picture of the person across from you or the wall or anything else that seems interesting but you don't want to be caught dead taking a picture of.

This action is often made more convincing by wiggling the eyebrows or opening the mouth, to pretend you're trying to get a Snapchat filter to work.
FRIEND A: "Did you just take a stealthie of me?"

FRIEND B (turning phone around): "no I was just using snapchat's new filter, see?"
Stealthie by gwenhyfar October 2, 2016
Word of the Day on May 25, 2026