To make attractive, stylish, or up-to-date: spiffying up my wardrobe. (verb-transitive)
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.
Use "spiffy" in a sentence
"Plus, they come in spiffy designs like mod half-globes and minimalist cylinders."
"Bookshelf to the left of me crammed with Uni work, textbooks, folders, magazines in spiffy holders, a framed Strategy Award. lol."
"There was live music at a nice (low) volume, polite inobtrusive wait-staff in spiffy uniforms, everything was perfect including the decor."