A fork of Rural Dictionary
Big Fucking Rock.
An object that is big, fucking and a rock.
Tim: Where did you get that huge bruise on your forehead?
Tom: I tripped over a BFR, otherwise known as a big fucking rock.
Pure Fucking Magic
An instantaneous event that accomplishes a task with seemingly no effort; results in immediate satisfactory results.
I got an A on my Physics test, scored with the campus hottie and cleaned my room in one day. I had my fair share of PFM.
Wow, you just ran 3 miles in 12 minutes and managed not to puke, that's PFM!