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1.
The same thing as period week. Nobody is getting laid during this time, and the most a guy can reasonably expect is a blowjob.

Often the only time some guys can connive oral out of sexually stingy partners.
"Hey man, did you bang that girl last night?"
"Nah, turns out it was head week."
"Right on!"

by D-Moneys April 06, 2008