Run:
brew install httpie
brew install jq
gem install lolcat
Download this repo https://github.com/schacon/cowsay and cd into its directory.
Run:
sh install.sh
Add this to the end of your bashrc/zshrc or whatever :)
printf "%s\n" $(http GET https://icanhazdadjoke.com/ Accept:application/json -b --timeout 200 | jq .joke) | cowsay | lolcat