is it the same as nuh uh?

No, "nuh-uh" is not the same as "no suh"."nuh-uh" simply means "no"; "no suh" means "no sir", in effect, "no way" and can also be used sarcastically

It is for "no, sir" with the accent applied "no, suh"

i use both in the same sentance frequently. If something is said to me that i find wicked surprising, i usually say "Nuh-uh...NO SUH!?" Basically meaning "What!? No Way!" The three ...'s means there is a pause in between to two...

YES SUH! thats Wiked Pissa thats the way ma Boston People Talk the is WIKED AWESOME .!!!!!!!!

yes-suh, no-suh. taken from the way southern blacks speak (still to this day): yessuh (massuh). nossuh (massah). some times i think it's disgusting so i'll just use 'NOOO!' to mean the same thing.yuh-huh and nuh-uh are just too fun not to use in the most exaggerate way possible.

"No Suh" is "No Sir" or "No Way" answered with "Ya huh" or simply "Sa" Who's writing these definitions, somebody from California?

Na ah and no su are exactly the same for everyone in revere. no su isnt used instead of no sir

I disagree that "no suh" has any connection to southern blacks saying "yessuh" or "nossuh." "No Suh" is just a very idiosyncratic expression that means "That's amazing" or "I don't believe that."