uprush /ˈʌpɹʌʃ/noun 1/ʌpˈɹʌʃ/ verb 1forms 3 noun1 •An upwards rush.Mrs Dibble's face blazed with a magenta uprush of blood at that ultimatum and she screamed, "You dare try to do me out of my gin too! You dare!" — 1950 uprush /ʌpˈɹʌʃ/ verb1 •To rush upward. formsuprushed · uprushing · uprushes