anything-fuelled – narratives of a new, edgy type of fiction sometimes called Britfic tend to be fuelled by a range of uppers – amphetamines, caffeine, cocaine, Robbie Williams
darkly comic (cf wickedly funny)
epic – as if synonymous with "long"
high-octane – of the fuel needed to keep thrillers going at breakneck speed
pure/complete unadulterated bliss/codswallop
tour de force (of literary scholarship) – the minimum length for a tour de force, not including notes, bibliographies and appendices, is 400 pages
wickedly funny – less dark than darkly comic
RTWT, as they say in blogs