wtf — translates acronyms for you

       The  wtf utility displays the expansion of the acronyms specified on the command line.  If the acronym is
       unknown, wtf will check to see if the acronym is known by the whatis(1) command.

       If “is” is specified on the command line, it will be ignored, allowing the fairly natural  “wtf  is  WTF”
       usage.

       The following options are available:

       -fdbfile
             Overrides the default acronym database, bypassing the value of the ACRONYMDB variable.

       -ttype
             Specifies  the  acronym's  type.   Simply put, it makes the program use the acronyms database named
             /usr/share/games/bsdgames/acronyms.type, where type is given by the argument.

       ACRONYMDB  The default acronym database may be overridden by setting the environment  variable  ACRONYMDB
                  to the name of a file in the proper format (acronym[tab]meaning).

/usr/share/games/bsdgames/acronyms       default acronym database.
       /usr/share/games/bsdgames/acronyms.comp  computer-related acronym database.

wtf first appeared in NetBSD 1.5.

Debian                                           April 25, 2003                                           WTF(6)

       wtf — translates acronyms for you

whatis(1)

wtf [-fdbfile] [-ttype] [is] acronym...