An exclamation of excitement
Something someone says to get your attention cuz they are about to say something, and probably rant
Yooooo the science teacher didn't even tell us about the midyear, she just gave it to us like it was no big deal with no time to study.
by JustABeanThatKnowsSumWerds January 31, 2017
Get the yooooo mug.