Suh Dude
A funny spin off of Language redundancy...
Saying suh dude as a slurred, shortform way of saying “What’s up, dude?” appears to originate with Vine comedian Nick Colletti and his friend Tanner “Getter” Petulla (also a DJ). On March 23, 2015, Colletti uploaded a Vine video featuring Petulla saying (a) suh dude for What’s up, dude? (often shortened to sup).
source: https://www.dictionary.com/e/slang/suh/#:~:text=Saying%20suh%20dude%20as%20a,(often%20shortened%20to%20sup).