1 definition by Crashmaeng

1.The sound a Blow Off Valve makes when it release's the pressure from a turbocharged car.

2.A car out in Western Syndey that the ladies love.
1.WHWWWHHHAAAAAPPPPPPPPP! WHOOPACHANG!!!!
2.OMG, Lets go for a cruise in the Whoopachang!
by Crashmaeng October 23, 2006
Get the whoopachang mug.