In car-speak, it's a loud, premature explosion in the intake manifold
If it's a 3.8L GM, with black plastic manifold under the engine cover, look ... GM 
put these plastic composite manifolds on to lighten the vehicle to meet .... An 
explosion severe enough to blow the upper plastic manifold apart... [DOC] [TLE] 2006 Dodge Charger Premature Engine Failure: 52 Complaints [PAR] The 2006 Dodge Charger has 52 complaints for premature engine failure.