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1.
sap
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.
This is the third time Joe bought vanishing cream off the internet; what a sap!
by Sap_Master November 24, 2004
 
2.
sap
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
joe liked mary and he always tell his boys that.
his boys would call him a "sap"
by _bbycakes November 15, 2009
 
3.
sap
socially awkward penguin
Sap is only funny, because you can relate.
by Timmeh234 May 02, 2009
 
4.
Sap
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 .
" last night my man was tryna sap "

" i'm feeling like a big sap "
by @ohhweeetiab September 22, 2010
 
5.
SAP
The sticky stuff that comes out of trees.
person: aw crap! i've got sap all over my hands!
by sillysac August 29, 2005
 
6.
sap
Noun. Insult. A person whose character has a spiritually debilitating effect on others. Typically an unhappy person who perenially moans to others but can also be someone who exhibits annoying behaviour.
Mike droans on and on about conspiracy theories - what a sap!
by Dan Fox July 04, 2003
 
7.
Sap
Another term for sperm or seemen. more derogatory like, jizz or cum.
1. "last night i sapped all over her!"
2. "yeah, she made me sap"
by sir. Awesome-o December 07, 2009