patch up verb 4/ˈpæt͡ʃˌʌp/ noun 3forms 4 verb4 •To repair by adding a patch.I needed to patch up my trousers after ripping them on the brambles. •To mend quickly. •(figurative) To repair relations; to improve relations.You need to patch things up with your sister after that horrible argument. •(no longer used) To overlay. patch-up /ˈpæt͡ʃˌʌp/ noun3 •The act of patching or repairing. •An instance of patching or repairing. •A hastily performed repair job; a quick fix. formspatched up · patching up · patches up · patch-ups