2. can be just continous sexual contact between a man and a woman
3. 3-some, 4 some, 5 some, etc (when u get the "buds" together and they arent weraing any clothes except perhaps a tie)
man i was tired after my 36 hour fuckathon with marissa
man lets get bob, cally, merry, dolly, and mark togehter so we can all do each other up the ass
Eli: "Man, you were in a fuckathon"
Mark: "Yes, I was and it was one helluva experience."