American, informal

a friendly way of saying goodbye to someone.

So long - see you tomorrow.

• lose sleep
• lose sleep over
• lose sleep over someone
• lose sleep over something
• lose temper
• lose the plot
• lose the thread
• lose the thread of
• lose the thread of something
• lose time
• lose touch
• lose touch with
• lose touch with someone
• lose touch with something
• lose track
• lose track of
• lose track of someone
• lose track of something
• lose your cool
• lose your edge
• lose your grip
• lose your head
• lose your heart
• lose your heart to
• lose your heart to someone