Definition of "so-long" []

• Good-by. Also so long.

The Century Dictionary (Public Domain)

• "To borrow a page from Larry King, I don't want to say "good-bye," because that sounds so final, but rather, "so-long" to the Great White Way."
• "(I doubt the above address was "stirring," esp. given her so-long Alaska speech a week or two ago.)"
• "Wednesday we said so-long and farewell and enough already to retiring Indiana Senator Evan “Nobody Likes Me Anymore” Bayh."