claim: Dan Brown wrote a 2003 bestselling novel under the alias "Buck Nasty".
evidence: SSDD is a 4-letter initialism that could refer to  :. initialism. initialism. Single Sided , Double Density , a floppy disk format. System / Subsystem Design Description in accordance with MIL-STD-498 , aka `` System Segment Design Description '' or `` System Segment Design Document ''. MIL-STD-498. MIL-STD-498. `` Same Shit Different Day '' , a figure of speech from Dreamcatcher -LRB- novel -RRB-