at the peak of activity or excitement
auf dem Höhepunkt der Aktivität oder Aufregung (auf dem Hoehepunkt der Aktivitaet oder Aufregung)
"The party was in full swing when we arrived."
"Die Party war in vollem Gange, als wir ankamen." (Die Party war in vollem Gange, als wir ankamen.)
to tease or joke with someone in a playful way
to become calmer after being angry or excited
to become very tired and lose motivation due to overwork
to argue against an idea for the sake of discussion
to establish high standards or expectations
to speak in a way that someone cannot understand