noun
breaking ties; pulling out; withdrawing
Refers to cutting off a relationship, leaving a group, or extricating oneself from a situation. Often implies a clean break or escape.
彼は組織から足抜けした。
He broke away from the organization.
あの会社からの足抜けは簡単ではなかった。
Pulling out of that company was not easy.
Compound of 足 (foot) and 抜け (stem of 抜ける, to come out). Literally 'pulling one's foot out', metaphorically extended to mean extricating oneself from a situation or relationship.