a challenge to site your sources. Commonly used to express disbelief in another's statement, and to insist that they state where they got the alleged information.
by Jeff Grigg March 16, 2008
Get the sez whomug. by MLGYolofade December 22, 2021
Get the SEZ Umug. 
you mistyped sex on google didn't you mate? and you saw this definition on the urban dictionary and you decided to read this.
i searched sez accidently bro
by comrade lloyderson☭☭☭☭☭☭☭☭☭☭☭☭ November 8, 2020
Get the sezmug. when you accidentally misspell sex while being horny as fuck on google. you then find this very link that led you here to read this definition. congratulations!
by choccy merchant November 17, 2022
Get the sezmug.