- exclamation (written as holler!)goodbye. A very fashionable usage among younger speakers since 2000.
- noun a response, telephone call. Probably originating in US speech, the term has been fashionable since 2000 in all English-speaking areas.
- verb to respond to, return a greeting or telephone call. One of the most common slang expressions in adolescent usage as recorded in a number of surveys since 2000.