プログレッシブ和英中辞典(第4版)の解説
にじかい【二次会】
a continuation of a party at another place [bar]
どこかで二次会を開こう
Let's go somewhere else and continue our party.
二次会まではつきあうけどそれ以上は無理だ
I'll keep you company as far as the second bar [restaurant] you move on to, but that's my limit.