Getting really wasted and fucking up all night long usually with a big group of friends.
Mark was chugging four locos when he got up and shoved Christian hard on the toilet.He was so black flagged.
ayon kay Myersgirl ika-02 ng Nobyembre, 2013
3 more definitions
to do something fucked up or wrong. Usually followed by someone waving a small black flag and the words "You done fucked up, son"
Tynise black flagged when she texted the wrong person. Twice.
ayon kay DistructiveHamster ika-15 ng Setyembre, 2013
a strong suggestion to avoid a person at all costs.
Behind Susie's back Wilkie formed the two-fingered x sign above her head - blackflagging her in no uncertain terms to Jimmy who had approached unsuspectingly with the intention of spading her.
ayon kay angela ika-06 ng Hunyo, 2003
To have poisoned insects or critters. Derived from a trademark named insecticide.
Yolanda blackflagged her crabs with lindane.
ayon kay harry flashman ika-10 ng Hulyo, 2003