Actually, it's still Thursday in seven of 21 US states, so still in time!
Today's word is:
1. Noisily and stubbornly defiant.
2. Aggressively boisterous.
From Latin obstreperus, 'noisy,' from obstrepere, 'to make a noise against.'
I knew exactly what I was getting into when I went to the quarterly work party - it doesn't matter how many parties go by, as soon as you give people free alcohol, the obstreperous behaviour starts up!