This is the 5252nd most frequent Korean word.
당했다고
"당했다고" means "was subjected to" or "experienced (something negative)."
In this sentence, '당했다고' refers to experiencing or suffering from an incident (a traffic accident).
그는 교통사고를 당했다고 말했다.
He said that he had an accident.
Here, '당했다고' conveys the idea of encountering or experiencing an unfortunate event.
그는 불운을 당했다고 느꼈다.
He felt he had suffered misfortune.
In this example, '당했다고' suggests undergoing an abrupt or negative action, such as being ambushed.