"i use linux as my operating system," i state proudly to the unkempt, bearded man. he swivels around in his desk chair with a devilish gleam in his eyes, ready to mansplain with extreme precision.
"actually," he says with a grin, "linux is just the kernel. you use GNU+linux."
i don't miss a beat and reply with a smirk, "i use alpine, a distro that doesn't include the GNU coreutils, or any other GNU code. it's linux, but it's not GNU+linux."

the smile quickly drops from the man's face. his body begins convulsing and he foams at the mouth as he drop to the floor with a sickly thud. as he writhes around he screams "I-IT WAS COMPILED WITH GCC! THAT MEANS IT'S STILL GNU!"
coolly, i reply "if windows was compiled with gcc, would that make it GNU?" i interrupt his response with "and work is being made on the kernel to make it more compiler-agnostic. even if you were correct, you won't be for long."

with a sickly wheeze, the last of the man's life is ejected from his body. he lies on the floor, cold and limp. i've womansplained him to death.