a type of slang in which words are spelled and, as far as possible, pronounced backwards
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
How to use back slang in a sentence
It is called back-slang, and simply consists of spelling (more or less accurately) words backwards.The Criminal | Havelock Ellis
For instance, woman in the back slang is nammow, and nammows is women.
I'd ha' run it off into back slang, and ha' done it most willing and free.
Variety is the charm of nature, we are told; and in this particular, if in no other, back slang and nature approach each other.
From these examples the apt student may fairly judge how to form his own back slang to his own liking and that of his friends.