chinchamajiday
A sound when man is surprised at finding out a new piece of information. Often used in East London in place of 'really?'
Example
Fam1: did you hear, Yoncé dropped a new album?
Fam2: chinchamajiday?!
Fam1: yeah, man. That shit's good.
Fam1: did you hear, Yoncé dropped a new album?
Fam2: chinchamajiday?!
Fam1: yeah, man. That shit's good.