Install cowsay-off by entering the following commands in the terminal:
sudo apt update sudo apt install cowsay-off
Description:
configurable talking cow (offensive cows)
Cowsay (or cowthink) will turn text into happy ASCII cows, with speech (or thought) balloons. If you don't like cows, ASCII art is available to replace it with some other creatures (Tux, the BSD daemon, dragons, and a plethora of animals, from a turkey to an elephant in a snake). . This package contains cows which some may consider to be offensive. Please do not install this package if you or your users are easily offended.
Homepage: https://web.archive.org/web/20120527202447/http://www.nog.net/~tony/warez/cowsay.shtml
Version: 3.03+dfsg2-4
Section: universe/games