When a male loans his wang or male sex organ to a female aka having loan sex. The female must pay back the male within a reasonable time or else she is forced to become his pimp.
"Man,I would loan wood to her."

"When are you going to loan your wood to me, big guy?"

"That bitch hasn't paid me back yet,I loaned her my wood!!!"
by The Woodsman aka ARF January 10, 2009
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