A sexual act where a man gives himself a titjob with a woman's melons while his butt is positioned either on or near her face. The "yelling" aspect is induced by the man farting or defecating on the woman's face which will likely lead to yelling unless she's into that sort of thing. In that case the Yellin' Melon cannot be properly achieved.
Ethel: "Oh my God Gertrude, why did you break up with Archibald?"

Gertrude: "He pulled a Yellin' Melon on me last night... after having eaten Indian food."
by Waaaat?! September 2, 2015