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1.
When a girl (or guy) says this it usually means "I need sex." or "I need dick." etc. etc. etc. etc...

basically another way of saying you want to fuck someone. :)

enjoy.
cait: "I need that."
doug: "me too, i'll be over in a few."
cait: "bring a condom!"
by Lizziberrr October 13, 2009