To put
stank on the source code is to use mystical and ancient knowledge of IT to fix or improve the function of electronics.
If you've ever had a problem with your
computer, and your geeky friend fixed it seemingly by magic, that's when you know that they dropped some
stank on the source code.
Person
1: Woah man, are you watching porn in 8k?
Person
2: Yeah
dude, I dropped some pretty serious stank on the source code, and now I can stream anal porn in ultra high quality
Person
1: My phone is so slow. I think I need to update my software
Person 2: Fuck that brah, just put some stank on the source code!