The one week of the month when a girl is on the rag and her partner is too pussy to try for red wings, and selfish enough to ask something of her.
"Hey Jennifer wanna go to the party with me this weekend?"

"No, I can't hold my booze and last week was BJ Week... I don't want to be projectiling cum all night."
by LL Cool Jen December 1, 2009
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When an awesome woman gives her man oral sex instead of vaginal sex during the week she is on her period.
She doesn’t care for intercourse when she’s on her period so it’s bj week! Yes she’s a keeper.
by Deepsea September 22, 2022
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