What is Complement?
1.
To go well with; to complete.
That lamp complements your desk perfectly.
2.
In Math, the complement is, simply put, that which is outside of the defined region. However, this is often used as an insult in geek circles.
Geek 1:Your momma's so fat, that she's the complement of your house.
Geek 2: Yeah, well at least my penis isn't always the complement of a vagina.
Geek 1: *shoots self, thus becoming the complement of existing*
See
3.
something you give to someone you like
something you add to food to improve its taste
She accepted the complement with good grace
See
