From Longman Dictionary of Contemporary Englishpatch something ↔ together phrasal verbMAKEto make something quickly or carelessly from a number of different pieces or ideas A new plan was quickly patched together. → patch→ See Verb table
Examples from the Corpus
patch together• Specialist multi disciplinary teams, it is advocated, are the fabric for patching them together.• In the weeks to come, Felicity would show me patches sewn together by hand. 