Definitions by ILIR

Lactate 

To sweat around one's breasts, or just to sweat in general.

When someone has a dry t-shirt except for two wet spots right at the breasts.

i.e. Would you look at that, Tom is starting to lactate.

i.e. Jesus Christ it's hot out here, I'm lactating already.

Lactate by ILIR September 9, 2008