おちゃらける

おちゃらける
verb (ichidan)
to joke around, to act silly, to clown around
1. to joke around, to act silly, to clown around
To behave in a playful, unserious manner, especially when the situation calls for seriousness. Often used critically to describe someone not taking things seriously enough.
おちゃらけないで、真面目(まじめ)()いて。
Stop goofing around and listen seriously.
(かれ)はいつもおちゃらけている。
He's always clowning around.
大事(だいじ)会議(かいぎ)なのにおちゃらけるから、上司(じょうし)(おこ)られた。
I got scolded by my boss for joking around during an important meeting.

CONJUGATION (ichidan):

  • Negative: おちゃらけない
  • Te-form: おちゃらけて
  • Past: おちゃらけた
  • ている form: おちゃらけている (clowning around — habitual or ongoing)

The noun/adjective form おちゃらけ can modify nouns: おちゃらけた態度(たいど) (a frivolous attitude).

NUANCE:
おちゃらける usually carries a mildly negative tone — the speaker thinks the person should be more serious. However, in the right context, being a bit おちゃらけ can be seen as endearing or fun.