noun
concocting an alibi; fabricating an alibi
Refers to the act of creating a false alibi, often in a criminal or deceptive context. The word アリバイ is from English 'alibi', and 作り means 'making'.
彼はアリバイ作りに必死だった。
He was desperate to concoct an alibi.
Compound of アリバイ (from English 'alibi') and 作り (the noun form of 作る, 'to make').