slip through

English

slip through (third-person singular simple present slips through, present participle slipping through, simple past and past participle slipped through)

To get past an inspection or procedure without any issue.
- 2020 May 6, Tim Dunn, “The Architecture The Railways Built”, in Rail, page 76:
  Criticisms of poor accuracy can usually be justified, but the occasional error (as in many a published work) can still slip through.
To barely pass; to minimally succeed at something.