Sorry, party people ... Amber Rose ain't down to rage for the 5th time in less than a week ... so she just pulled the plug on her Halloween event.
The party was supposed to happen Wednesday night at a mystery location -- Amber's invite only said "details coming." We're told Amber's waving the white flag because she's been going HAM since Friday when she turned 33.
She threw back-to-back house/pool parties Friday and Saturday, then did a full day at Disneyland with her son on Sunday ... and finally -- showing her range -- did a late night at Ace of Diamonds strip club on Monday.
We gotta say, partying is kinda Amber's brand, so it's odd she cancelled. Of course, she's got 5 more days to make good before Halloween.