Umm was I the only one too assume that BFR meant Big Feckin' Rocket? Oh, no, I see waitbutwhy has a piece on it [0]
I disappointingly see F is for Falcon, but still I really like the lack of marketing in the name.
Plus I like the parallel with Roald Dahl's BFG.
[0]: https://waitbutwhy.com/2016/09/spacexs-big-fking-rocket-the-...