An onomatopoeic word for tickling—both the action of tickling someone lightly and the sound/feeling associated with it (used as 'こちょこちょする').
子どもが脇腹をこちょこちょされて大笑いした。
The child burst out laughing after being tickled under the ribs.
寝かしつけに、母親が赤ちゃんの足をこちょこちょした。
To help put the baby to sleep, the mother tickled its feet.
犬の好きな場所をこちょこちょすると、尻尾を振る。
If you tickle the dog's favorite spot, it wags its tail.
An onomatopoeic word for fidgeting, fiddling or moving about restlessly; can also describe whispering softly into someone's ear or fiddling with things.
会議中、彼は書類をこちょこちょと指で弄っていた。
During the meeting he was fiddling with the documents with his fingers.
恋人が耳元でこちょこちょと囁いてきて、つい笑ってしまった。
My partner whispered playfully in my ear, and I couldn't help laughing.
An interjection used when tickling (a playful 'kitchy-koo' or 'goochie-goo' type sound); often said while tickling someone.
「こちょこちょ！」と言いながら子どもの脇をくすぐった。
Saying 'kitchy-koo!', I tickled the child's side.
赤ちゃんに向かって『こちょこちょ〜』と声をかけるとニコニコする。
If you say 'kitchy-koo' to a baby, they grin happily.