ツイ飲み (tsui nomi)

tsui= short version of "Twitter" - twi, nomi= drinking

This is the drinking party with Twitter in each place.

Japanese office workers often have drinking parties with their bosses and co-workers.
But most people don't like such parties because the boss is always so overbearing.

So recently young people have parties using Twitter from their own place.
They can wear and drink anything they want.

If you want to find drinking companion on Twitter, you can use #twinomi.