The titular term Hollaback Girl
of Gwen Stefani's former number one single features original urbanization of cheerleading vernacular.
In cheer, the head cheerleader performs the act of "hollering" while leading the cheers; the lesser members of the squad "holler back," repeating the cheer.
Stefani's "Hollaback Girl" urbanizes the "holler/holler back" dichotomy of the cheerleading squad in a snub to Courtney Love. Love derisively referred to Stefani as a "cheerleader," and Stefani's response was to write the song, which is essentially a repetitious cheer as a sort of "fuck you" to Love.
Her urbanization is misplaced, however, because "to holla
" connotes entirely different meanings from what Stefani intends, including speech acts of solidarity between in-group members, general speech acts intended to generate dialogue with a potential sex-partner/mate, and others.
"Gwen is apparently the captain of the cheerleader squad; she is the girl who 'hollas' the chants, not one of the girls who simply 'hollas' them back." (see the OC Register)
"Are you the cheer captain?"
"No, I'm a 'Hollaback Girl.'"