uncultured but well-intentioned person; average nice guy; Joe Blow
A colloquial, somewhat dated term for an ordinary, unrefined but good-natured person. Often used in a friendly, slightly teasing way. Cross-referenced with 熊さん八っつあん, a similar expression.
See also: 熊さん八っつあん
He's the kind of uncultured but well-intentioned guy you can't help liking.
In the old downtown areas, there were many good-natured folks you might call Joe Blows.