expression
tee-hee-pero; sticking out one's tongue playfully after a blunder
A slang expression combining てへ (a sheepish laugh) and ぺろ (sticking out one's tongue). Used to playfully acknowledge a mistake or awkward moment, often with a cute or self-deprecating tone. Popularized by voice actress 小倉唯.
また遅刻しちゃった、てへぺろ。
I'm late again, tee-hee-pero.
I forgot my homework, tee-hee-pero.