Adjectives used to describe a woman's
appearance. One's being OK, Five's being very good. 20's are also an acceptable answer.
Derivation: One's or Five's derives from Strip Clubs where the amount of money offered to a stripper is sometimes
questionable. If you see a girl
you would like a dance from, but are unsure how hot she really is, you turn and ask your buddy "one's or five's?" He will then respond with one answer or the other.