noun
complete ruin; total collapse
Describes something being crushed or ruined beyond recovery, often physically or metaphorically. Used with になる or だ.
地震で家が丸潰れになった。
The house was completely destroyed by the earthquake.
計画は丸潰れだ。
The plan is in total ruins.
noun
losing completely; total loss of face
Often used with 面目 (face, honor) to mean a complete loss of face or reputation. Can apply to other abstract things being utterly lost.
あんな失敗をして、面目丸潰れだ。
After such a blunder, I've lost all face.