quickdecider
nounUK /ˌkwɪk.dɪˈsaɪ.də/
US /ˌkwɪk.dɪˈsaɪ.dɚ/
A quickdecider is a person who chooses things very fast.
Our teacher is a quickdecider, so she picked the game in just one second.
OTHER MEANINGS
2. A tool or app that helps you make a choice quickly.
The quickdecider app helped us pick a movie in seconds.
3. A rule or method for making fast decisions.
We used a simple quickdecider to choose the team captain.
4. A moment when a decision is made very fast.
The final goal was a quickdecider for the match.