mic check exclamation 1noun 1mic-check verb 2forms 4 exclamation1 •A phrase often spoken into microphones when conducting a mic check. noun1 •An audio test to verify that a microphone is working correctly as part of a sound system. mic-check verb2 •To conduct a mic check (microphone check). •(informal) To use the human microphone technique to interrupt a public speech. formsmic-checked · mic-checking · mic-checks · mic checks