Chiefly British Slang Unstylish, clichéd, or outmoded.
Chiefly British Slang To fool around or go about: "naffing about in a tutu” ( Suzanne Lowry).
Naff off Used in the imperative as a signal of angry dismissal.
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.