Green’s Dictionary of Slang

fluff it! excl.

[? euph. for fuck it! excl.]

take it away! I don’t want it!

[UK]Hotten Dict. of Modern Sl. etc.
[UK]Sl. Dict.
[UK]Sporting Times 22 Mar. 1/1: ‘What about Frigate to start with?’ ‘Oh, fluff it!’.