Having sex from behind. Also referred to doggy style or makin' bacon. Well, bacon fucking is that of two persons, hetro/homo or whatever, which are overweight (resembing pigs).
Sally and Jim were really going at it last night. I could hear them Bacon Fucking through the walls. Those two better be careful or they'll go through another bed this week.
In Ricegums words, " I'm fucking on your bitch now, on your bitch now. " In It's Everynight Sis. ( PLUGGGG ) Meaning I have your bitch and you're a piece of SHIT!
When you decide to have sex with your lover, who is unfortunately (for both) menstruating. Also, she has been plugged with a tampon, strings all a'danglin'. During intercourse, the tampon appears to slide out, much like the horn of a unicorn.
A potentially sedate weekend in Daylesford may have been caused by an awkward round of "Fucking the Unicorn"...