ChatGPT to the rescue. Here is the shorter synopsis.... still crazy but at least it's understandable now.
> The metaphor: if you were going to pick up (or “take”) your penis with something as thin and fragile as rolling paper, you’d better be very careful — otherwise you’d tear it, risk injury, etc. That imagery is deliberately hyperbolic and somewhat bawdy, which fits the nature of many Spanish idioms.
> Over time the expression morphed into the figurative sense rather than the literal. Some sources note that the exact phrasing is “cogérsela con papel de fumar” rather than “coger con…” etc.
It kinda suggest people in Spain do this lol. Slang is weird sometimes!
