While browsing the source code of the Ruby’s virtual machine I stumbled upon an easter egg.
If you recompile your Ruby with the SUPPORT_JOKE setting, you’ll be able to
call two hardcoded methods called #bitblt and
the_answer_to_life_the_universe_and_everything.
[1] pry(main)> bitblt
=> "a bit of bacon, lettuce and tomato"
[2] pry(main)> the_answer_to_life_the_universe_and_everything
=> 42
The return values are defined in insns.def.