The troops made a desperate 'last-ditch' effort to keep the town from being captured.
The negotiations were a 'last-ditch' attempt to prevent a labor strike.
His girlfriend 'ditched' him. = He 'got ditched' by his girlfriend.
(..) So where're we really going? An elephant graveyard. Wow! Shhh! Zazu. Right. So how are we gonna ditch the dodo? Oh I know how we can-- Oh, just look at you two. Little seeds of romance blossoming in the savannah. Your parents will be thrilled... what with your being betrothed and all. Be-what? (..)1994 The Lion King