2 definitions by Twisted Phister

Acronym; stands for "Hard Core Fuckin'". Very useful when describing what you did last night when in the presence of a group that includes your girlfriend, who subsequently was stuck at work on the night in question.
He said he was HCF'in last night, which is strange because he was at a family reunion.
by Twisted Phister March 7, 2005
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acronym which stands for "Back Fat Fuckin'". Achieved by pushing together two rolls of fat on some fat slut's back and pumping away. A good technique when the rotund cum-dumpster you're rogering has a hatchet wound so loose that it's like throwing a hot dog through a hallway.
You'll get that new aggressive full-blown AIDS if you bone that slutty keg-on-legs.

That's okay, I just plan on doing some BFF'n.
by Twisted Phister March 10, 2005
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