A plot by a man or woman to set up a target, by Posing as a friend and introducing them to another person who will commit harm against the target, or aid in the plot to do harm.
Example:
You heard about Mark? yeah he was an Acquaintance (or friend) to jack. Yeah, that man is not cool. he set Jack up in a "Dulo Twist" Jack a Good Guy, but when Mark and Jack went out to eat and drink. jack Pretended to meet thot named shella for the first time, she then got to know mark, they went out to a hotel. shella druged Mark. Jack comes in and robs him blind. Mark is then left for dead. almost killed him. he gave that man love. you can never trust a gang-member.
Named after a dude with terrible personal hygiene and more STD's than a crack whore in Amsterdam, that is attempting to get lucky at the bar. "A guy who is engaging the town whore in sexual intercourse in the out house "biffy" outside the local bar. After he finishes he leaves the whore in the biffy and tips it over on the door so the whore cannot escape."
Dude 1 "Hey man I gotta take a piss"
Dude 2 "Lets hit the biffy outside the line is too long in here"
Dude 3 "We should but shitter is out of commission, some guy dirty dulon'ed a hoe last night"
Dude 2 "That must've been one slutty hoe"