What does どきどき mean?
どきどき is a Japanese noun meaning “throb, beat (fast)” in English. It can also be translated as “to beat fast (of one's heart)” depending on context. It is written as どきどき in hiragana, and dokidoki in romaji. This word is part of JLPT N2 vocabulary.
Example sentence
彼は心臓がどきどき打っているのを感じた。
He felt his heart beating fast.