Coined by the YouTuber Tpindell. It means to have sex with another woman. She will have her feet up in the air and while you are raming her with your rock hard cock her ankles will move side to side like they are loose.
Yo baby girl you know I love you and everything. I just want to be your friend but on a side note can I knock them ankles loose.
Annoying bitches that one of your bros constantly brings around because they're his "friends". They won't fuck the crew but only get in the way of the crews night because the crew must drag them everywhere therefore being ankle weights on the crew.
Example 1: "Bro why did you bring these ankleweight bitches?"
Example 2: "Fuck these ankleweight bitches they're still in the restroom"