After Brigadier General Thomas R. R. Cobb's Irish Regiment of Georgia pushed back Lieutenant Colonel St. Clair Mullholands Irish Brigade, a Captain (3 stripes on the collar) took off his hat and started yelling "Haroo! Haroo!" and the rest of the regiment cheered "Haroo!"
by Jedi_Master June 16, 2008
Get the Haroo!mug. Used by the gaming community known as the Acolytes. It is used to express something positive that has happened to the community or someone in it.
by Hiezu January 28, 2010
Get the Haroomug. An exclimation of excitement or joy.
by Theo Rosenthal January 28, 2007
Get the Haroomug. by Daniel "El Hefe" Posner September 3, 2003
Get the Haroomug.