A term similar to booyah, used primarily by No*Doubt (Retarded_Spoon) of E-Crush, as well as by old ladies. Usage is spreading throughout the more educated members of the E-Crush population however, which has spurred the growth of a new derivative, "wa cha".
by Dr. Tony January 17, 2005
Peach's side-b. With a great thrust of energy, Peach thrusts her butt at you and shouts ha-cha! Getting hit by this move is somewhat embarrassing and mildly erotic.
Ganondorf: I can't believe that ha-cha just hit me. I'm going to roadhouse her and send her cute little butt flying.
by God of the Kitchen July 14, 2010