Open the floodgates

[Vladv1]

"Then something insane happened. The first Bathory album exploded onto my turntable and took me bу complete surprise. I will admit that when I first heard that devil goat of an album, I didn't care where it came from-I knew this was pure sickness in vinyl form! Open the floodgates, mother*******! Next thing I knew, Nihilist came and went, and holy hell what killer sh*t!"

Swedish Death Metal By Ekeroth, Daniel.

What does "Open the floodgates" mean here? Is it an order from the author for us to start listening?

 

[SoothingDave]

No, it means something like "here it comes and it's overwhelming!"

 

[Annabel Lee]

In the context of its being "that devil goat of an album," "floodgates" in "Open the floodgates" carries the connotation "floodgates of hell." He regards letting this Death Metal album play as being, aurally speaking, like letting hell loose and welcomes the experience.