Top Definition
When a woman in on her period (aka "up on blocks"). Similar to "lockdown"
We can't have sex this weekend because my girlfriend is on blockdown.
#period #rag #menstrual #cycle #sex
von Anthony Gentile 30. April 2007
When you block someone on your friends list.
Friend #1: "I'm tired of Joe posting sarcastic messages on my status updates."
Friend #2: "Girl! You need to put him on BlockDown!"
#block #facebook #blockdown #friends list #block list
von Lolita75 16. Januar 2010
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