wouldn't say no

An expression with strong sexual connotations, it is used generally when referring to someone of the opposite sex who, while not attractive enough for the subject to actively pursue as a sexual partner, is sufficiently attractive that if said person were to pursue the subject for the same reason, the subject "wouldn't say no".

1. Used when looking people up, means wouldn't go up to them but if they came up to you, you wouldn't reject them.
2. If they asked for sex, you so would.