I prefer the extremely intuitive:

[C-R]=system("grep -P "PPid:\t(\d+)" /proc/$$/status | cut -f2 | xargs kill -9")

or

i:!grep -P "PPid:\t(\d+)" /proc/$$/status | cut -f2 | xargs kill -9[esc]Y:@"[cr]

It just rolls off the fingers, doesn't it?

Edit: damn it lemmy didn't like my meme because it assumes that characters between angle brackets are html tags :( you ruined it lemmy

EDIT 2: rewrote it, just assume that square brackets are buttons not characters