holla back noun 3verb 3forms 4 noun3 •(informal) A holler back; a reply. •(informal) An echo of voices, much like the response of a crowd to a cheerleader. •(informal) Feedback. verb3 •(informal) To reply.“Earth to Kimi, holla back,” Yvonne taunts after I miss another easy serve. — 2008 •(informal) To contact again at a later time.Holla back when you get outta church. just got ya message, i saw it when it popped up. — 2006 •(slang) To make or respond to romantic or sexual overtures.I have a goatee, moustache, and medium thick eyebrows. Here to meet some cool peeps so Holla back at your Boy. — 2003 formshollaed back · hollaing back · hollas back · holla backs