taru-adjective, adverb taking the 'to' particle
cups and plates scattered about after a party; things lying about in a jumble
Archaic yojijukugo describing the messy aftermath of a feast or banquet, with dishes and utensils strewn about. Used in classical or literary contexts; not part of modern everyday speech.
After the banquet, cups and plates were scattered everywhere.
部屋の中は杯盤狼藉として、足の踏み場もなかった。
The room was in such a jumble that there was nowhere to step.