someone who is spilling out their guts about how they feel and such

you can be a sap when you are talking about how you feel about love life etc

A fool; someone who is prone to being taken advantage of, or who has been taken advantage of, usually in a situation that is easily perceived by others as foolhardy.

Irish slang; sad ass prick.

SAP
Sad And Pathetic

Someone who is being love-dovey with opposite sex. Talking on the phone, texting, making subliminal messages on twitter or facebook.

OR

Playing slow music, love music, being soft .

To Pass on something; a way of saying "no thank you" or "I'm not interested".