ワンチャン

わんちゃん
adverb
maybe; possibly; there's a chance
informalslangdescriptive
1. maybe, possibly
Indicates there might be a small possibility of something happening. Derived from 'one chance.'
ワンチャンあると思(おも)う?
Do you think there's a chance?
ワンチャン間(ま)に合(あ)うかも。
We might just make it in time.
Don't you think we might have a chance of winning tomorrow's game?
2. if we're lucky, with any luck
Used to express hope that something might work out, often despite low odds.
ワンチャン狙(ねら)ってみる。
I'll try my luck and see.
ワンチャン狙(ねら)う means to go for a slim chance
Maybe I'll get to see them today.
The rain looks like it's stopping, so maybe we can go see the fireworks with any luck.

Register: Casual youth slang. Very common among young people since the 2010s.

Origin: Derived from English 'one chance.' Originally used in gaming contexts to mean 'there's one chance' or 'a slim possibility.'

Usage

  • Often used at the beginning of a sentence
  • Can modify verbs or stand alone
  • Implies low probability but not impossible

Common patterns

Note: Originally from gaming/gambling contexts, now widely used in everyday casual speech. Not appropriate for formal situations.