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1.
When a woman is unable to engage in sexual activity because she is menstruating.
"Sorry baby, you probably want to stay away from that area. I'm out of commission."

or

"You might want to be careful down there... I'm still a little bit out of commission..."

or

"uh, you should jump me now, 'cause I'm definitely back in commission."
by cameragoo February 28, 2006