tuff

plural tuffs

1. countableuncountablegeographyA light porous rock, now especially a rock composed of compacted volcanic ash varying in size from fine sand to coarse gravel.

   This is what makes an ignimbrite; the general term for this kind of volcaniclastic rock is ‘tuff’.

   2004, Richard Fortey, The Earth, Folio Society, published 2011, page 9n

   Synonyms: tufa

comparative tuffer · comparative more tuff · superlative tuffest · superlative most tuff

1. pronunciation spellingEye dialect spelling of tough.

   TUFF METER

   2006, Paige Hemmis, The Tuff Chix Guide to Easy Home Improvement, Penguin, →ISBN, page 36

   5 more examples

   Tuff Stuff teaches that while life may go smoothly most of the time, ...

   1980, Joy Wilt Berry, Ernie Hergenroeder, Tuff Stuff: A Children's Book about Trauma, Educational Products Division, Word, Inc., →ISBN

   … yet never to make us so strong as the strongest of Men, whose Sinnews are tuffer, and Bones stronger, and Joints closer, and Flesh firmer, than ours are …

   2000, Margaret Cavendish, “Preface to the Reader (1655)”, in Sylvia Bowerbank, Sara Mendelson, editors, Paper Bodies, →ISBN, page 139

   It was rave reviewed in the Caribbean Times as 'the ruffest, tuffest and the boo-yacka of all modern gangster novels'.

   2003, Ronald Carter, The Routledge Guide to Modern EnglishWriting, Routledge, →ISBN, page 96

   Its Tuff-n-Tiny USB flash drive is about the size of a thumbnail. … The company insists that the "tuff" part of the name is well-earned for being waterproof, dustproof and you can drive a car over it.

   2010 January 20, Robert J. Elisberg, “CES 2020 -- Ohm on the Range”, in Huffington Post, retrieved 14 Sep 2012

   Tuff Stuff Professional Wrestling

   2011, Kristian Pope, Tuff Stuff Professional Wrestling Field Guide: Legend and Lore, Krause Publications, →ISBN

2. InternetironicoftenImpressive, amazing, awesome, cool.

   bro thinks he's tuff

plural Tuffs

1. A surname.