One of 6 personality traits generally exhibited by women. "Number Five" is attainment of a state which involves consumption of high amounts of alcohol where a distinctive change of personality occurs (i.e, akin to Multiple Personality Disorder ) which include becoming a Fuckowie, becoming highly fun-loving of anything & everything and, lastly, becoming highly sexually charged (of which nothing may result because of being TDTF).
a sexual position in witch the woman lays on her back and puts her ankles to her head. the man then lays across her putting his penis into her "Vajayjay?" and proceding to fuck
Girl: Man i couldn't get off last night with Timmy!
Girl 2: Did you try trusty number 17?
Girl: Thats the only one i didn't try.