hackathon

[ hak-uh-thon ]
/ ˈhæk əˌθɒn /

noun Digital Technology.

a usually competitive event in which people work in groups on software or hardware projects, with the goal of creating a functioning product by the end of the event: At the hackathon our team produced an app that helps you monitor your sleeping habits.

Origin of hackathon

1995–2000; hack1 + -athon