[tmtvl]

The term 'Cowboy coder' has been around for some time. Everybody's favourite unreliable source of knowledge has issues dating back to 2011: <https://en.wikipedia.org/wiki/Cowboy_coding>

[pjmlp]

This was already a thing in Usenet days, an example from 1998

https://groups.google.com/g/comp.lang.lisp/c/tfzX3Sq96Xk/m/0...