The female version of a woody
, a hard-on
, a boner
. When a woman becomes sexually aroused, her vagina becomes moist, or she "gets a moistie".
I totally got a moistie when I saw Brad take his shirt off and reveal those huge pecs.
ratio of women to men
cod = fish that you're trying to catch.
rod = thing you catch fish with.
Of course, it also works on the (female body part that allegedly smells like fish) / (male body part that sometimes is a rod) level.
Let's blow this popsicle stand, the cod-to-rod ratio has been getting worse ever since the ball game ended.