Linux is the kernel, useless without actual programs to run on it. In general the minimal set of programs to make a Linux system actually useful (cd, ls, cat, …) are provided by the coreutils package, a GNU project.
RMS, the founder of GNU, was pissed that people were using Linux + his software and simply calling it Linux, so he insisted that the proper generic name for “Linux” distributions was actually “GNU/Linux” (i.e. GNU utilities + Linux kernel).
OP’s joke is that we name stuff without specifying their components or needed tools all the time, so we shouldn’t bother doing it for Linux.