Korean Onomatopoeia! A fun thing to add to your repertoire of Korean words to really add emphasis and feeling to your conversations. Onomatopoeias imitate a sound, feeling, or action; like “The dog barked at me as I clanked my keys”.
In Korean onomatopoeia is called 의성어, you might have heard Koreans use onomatopoeia something like: “and I ‘whhackkkkk’ smacked him!”. I actually think they are used more commonly in Korean than English. You will especially see them with storytelling, whether in person or a comic or book.