Sho-nuff
Sho nuff, is a southern slang, oft heard my the elders, simply the short word for " Sure Enough "

Mostly used in a sentence as a way of saying " are you serious?''

Or as a way of saying, '' yes, I'm serious "
Child: " Grandma, Daisy had 5 puppies!"

Grandma: '' Sho-nuff ? "

Child: " yes grandma! "