yeah i can help. (this is off wikipedia)
The Yes Guy (also known as The Frank Nelson-Type[3]) is a character known for bellowing “Ye-e-e-es?!” in a rising inflection, and appears to be highly eccentric in both his speech and appearance. During his first appearance, in “Mayored to the Mob,” Homer asked “Why do you talk like that?”; Yes-Guy’s response was “I had a stroooooooooooooooke!”
He has appeared several times working with several jobs: waiter, employee at Costington’s, Death Row guard, and ice cream man. He has been referred to by Homer Simpson as “that jerk that goes ‘Yeeeeesss!’” in “Marge vs. Singles, Seniors, Childless Couples and Teens, and Gays.” This line was left out of the episode when it aired in the UK on Sky One in 2005, but it has appeared on subsequent re-runs.
He is a tribute to a recurring Frank Nelson character from The Jack Benny Program, I Love Lucy, and later Sanford and Son, whose trademark greeting in all his characters was a loud, drawn-out “Yeeeeesss?!” Inexplicably, the original character could always be found working behind the service counter of whatever shop Benny or Fred Sanford might be patronizing, and his Simpsonian counterpart is equally omnipresent. There was also a Brazilian version seen, uttering a Portuguese variation of the catchphrase (“Si-i-i-i-i-i-i-m-m-m-m-m?”—meaning “yes” in Portuguese).
The Yes-Guy shares the physical characteristics of his real-life counterpart: he can be described as a rather squat, stocky man with a moustache, and black hair receding into a widow’s peak.