A fork of Rural Dictionary
When the husband leaves or dies and the son that moved back in years ago, takes over as "the man of the house".
Ever since the Sheila's divorce, nothing seems to have changed because her son Josh jr. has taken on the manly duties around the house, like a good sonsband would do...
When the cougar marries the prey; i.e., the much, much younger husband of a cougar.
Demi Moore and her sonsband Ashton divorced after recurring arguments over Ashton's playstation time.