Two words written together to form an adjective, meaning a combination of what Art is; and for, with, and from You. In a sentence, these two words without the well-known Shakespearean play written "Romeo & Juliet" verse that precedes "art thou" with "wherefore", "art thou" is a statement alone that acts as an adjective catalyst to boost each sentence in which it is used, offering a greater meaning.
With my pen in hand, my mind free and fanciful, let it be that I'd reach my reader ("alas!" ), art thou becoming so just as free ?
by Lil Irish September 3, 2015
Spoken by Juliet in William Shakespeare's Romeo and Juliet. Wherefore means “why", in this line Juliet alludes to the feuding families of the play - lamenting Romeo's name.
Romeo, Romeo, wherefore art thou Romeo?
by DerpySqwuid December 8, 2018
It means "Where Are You?" , "Art thou" was used also in Shakespeare's "O Romeo, Romeo! wherefore art thou Romeo?"

"Thou shalt" and "thou shalt not" are used in the King James version of the Bible in translating the Ten Commandments.
O Brother, Where Art Thou? means (O Brother, Where Are You?)
by shager May 1, 2015
Classy old english way of saying "You mad bro?"
a: Why does everyone watching stupid ponies?! FUUUUUUUCK DIS GAY SHIT

b: Art thou bedlamite?
by Fun1k September 7, 2012
When Who's your daddy? gets tired, change it up with a little "Who art thou father?" Can also be embellished with a chaser, as in "Who art thou father... biotch?!?"
Vader: "Luke"
Luke: "Yes?"
Vader: "I am your father."
Luke: "No, that's not true... that's impossible..."
Vader: "Who's your daddy?"
Luke: "NOOOO!"
Vader: "Who's your daddy? Who's your daddy? Who's your daddy? Who's your daddy?"
Luke: "I'll never join you!"
Vader: "Didn't you show up here with two hands? Who art thou father?"
Luke: "Well played."
by The_J_Man March 4, 2009
The act where Daddy Pig goes missing and you don’t know where that silly man could have gone!
Peppa: OH DADDY PIG!? daddy pig, where art thou?
by Bobbie Newtron2 acc January 11, 2021