subwoof noun 1verb 1forms 3 noun1 •(informal) The very low-pitched sound produced by a subwoofer.Pelayo leaned forward and picked up the menu in front of him. The subwoof bass from the speakers kicked at his eardrums, heavy as steel-toed boots. — 2006 verb1 •(informal) To produce a very low-pitched sound."El, this is fucking rad," Oksana subwoofed. — 2015 formssubwoofed · subwoofing · subwoofs