Attitude Plenty is the second child and only son of Bob Oscar "B.O." Plenty and Gravel Gertie. His face has not been shown, but he is apparently quite gruesome, with dark, wiry hair like his father.
Attitude Plenty was named after Eddie Tude, a pizza delivery driver who took Gertie to the hospital when she went into labor. He has a tendency to throw objects at his father's head with alarming accuracy.
B.O. took Attitude to meet his side of the family, leaving Gertie alone at Sunny Dell Acres with Sparkle Plenty and Jewel Tracy when Measles came seeking revenge.
Attitude was later seen standing and walking, chasing his father in the yard of Sunny Dell Acres, but his face was obscured.
As a toddler, Attitude joined his family as part of the musical group called The Sounds of Plenty. He played the tambourine.