Like Some Alibis is a phrase used to describe an alibi that is so convincing that it is almost impossible to disprove. The crossword solutions for this term are AIRTIGHT (8 letters), IRONCLAD (8 letters) and PAT (3 letters). AIRTIGHT and IRONCLAD are both adjectives that mean something is so secure that it cannot be broken into or challenged. PAT is an acronym for Proved Beyond A Reasonable Doubt, which is the standard of proof required in criminal cases.