similar to "yadadi" chadadi expresses another urban term "chu" which means YOU. so you take the YA out of "yadadi" and put the CHA in and you get "chadadi" mean chu know what i mean
PS: if you reside outside of the "yay urrrea" bay area please refrain from any use of this word. thank you. -management
man, i am exasperated from that Shania Twain concert CHADADI MEAN?!?