A term used when a person wishes for a surprising or astonishing statement to be repeated, or simply to show their surprise at said statement. To accurately model the timbre of the phrase, omit a high pitch during the last portion of the phrase in addition to stretching the "what" as long as deemed necessary by the user: Say (In high pitch) Whaaaat?!!
when u r suprised xcited happy sad disappointed this is jus da word reeli :) all us niggas b usin it
u hav 2 say what like whattttttt emphazise it wid ur head n ur tung!
Modern version of the grandparents' phrase "I beg your pardon." Words better when talking to friends, but not so much when talking to teachers or bosses.