A series of events in which many
people are consequently ditched. These series of "ditchings" all happen in an unintentional and unthinking manner. Hence, the
ditching chain is completed.
You can only
break the ditching chain by ditching the ditching chain by which you would have to unditch someone and go out with them.
"The plane ditched the girl, the girl ditched her
boyfriend, in addition, the
boyfriend ditched his friend at the bar, and, finally, the friend ditched the teacher at his tutoring classes."
"The tutoring teacher ditched the ditching chain by attending to her
sister's birthday party and not ditching her."