The irony is Leni stans have been using drug insults against BBM (e.g. "adik sayo, Leni sa amin", "cocaine boy", and "boy ngiwi") when the sole source for this rumor is fucking Duterte.
Nikki Coseteng did say the same thing... but that was 1) way after Duterte mentioned it, 2) she was doing an interview throwing her support for Leni-Kiko, 3) and it's really nothing more than "TrUsT mE bRo".