"ZA WARUDO!" (also known as The World) is a phrase that is used by DIO when activating is stand's power, which is time stopping. It is also used to call his stand, which is also named The World (surprise, surprise).
Usually, the phrase "Toki wo tomare!" (Time will stop!) and a time stop effect (just imagine a fart sound, but a deep one, is layered over a remixed version of a ticking clock ) comes after "ZA WARUDO!" is screamed. After that, well time resumes (Soshite toki wa ugaki dasu)
The phrase is also used by Jotaro in part 4 and 6 of the series, but with the addition of his stand's name which is Star Platinum : The World (Suta Purachinamu : Za Warudo)
Dude 1 :"Hey dude, do you know the real way to stop time?"

Dude 2 :"As an anime fan, I'll do it in a graceful way."
*Clears throat*
"ZA WARUDO!"

Dude 1 : "This is why I love you bro."
by Geroxynm February 18, 2018
A stand that can stop and or manipulate Time. Also a word that is quite fun to say.

ZA WARUDO!!! - DIO
It is time i kill you jotaro..ZA WARUDO!
ZA WARUDO, (ZA-WAL-DO) was originally used by DIO, in part 3 of jojo's bizarre adventure. It has the ability to stop time, and DIO can make time stop and resume as he wishes. However, it is also do-able in real life. If you shout ZA WARUDO similarly to how DIO does, everyone will stop and turn to you, essentially stopping time, as everyone is frozen in confusion and fear.
"ZA! WARUDO!"
*everyone turns*
"YOU FOOLS, I HAVE STOPPED TIME!"
*everyone will be too scared to even move*
by Nathan's Username October 19, 2019
This phrase(only used by 5000 IQ chads) was originally used by DIO to active his time-stopping stance, but is now the intellectual property of Nux Taku. Lord Nuxanor uses this phrase to un-ironically describe the universes of the anime he is analyzing, or to non-sarcastically describe something in our world, which still is usually pertaining to anime(or, you know, Hentai)
No one:
Lord Nuxanor: Boruto is the best anime in Za Warudo!

--------------------------------

Everyone:
Nuxanor: Lord Twigo is the most powerful being in Za Warudo!
by yup I just did that November 6, 2019
A name of a stand from Jojo's bizzare adventures. The stand user Dio uses this stand to stop time and when he goes to stop time he will usually shout "ZA WARUDO." The term "za warudo" means the world in English.
Dio: ZA WARUDO! (Time begins to stop)
by invaderchris9001 February 4, 2020
What DIO says when he uses his stand to stop time
Pronounced

/Zā Wārûdô/
English
/Thē Wôrld/
Jotaro: hecc u dio
DIO: ZA WARUDO
by nglurkindasus November 13, 2020