A rating system used to rate women on their masturbatory appeal.
Similar to the traditional binary rating system (would you have sex with her or not), this rating system is to divide girls into two well defined groups based predominately on looks. Generally if a girl passes the tug test, she’ll be a “1” on the binary scale. The tug test’s primary function is to further separate the upper echelon of attractive girls from the general populace.
Would you tug to her?... It’s a fair question.
Tug Test! What do you think of Marsha Brady?
Oh! She’s a “1”; I’d tug to her for sure!
What about Jan?
Ugh… I wouldn’t tug to her, but I’d probably do her.