A backdoor girl. One who can't be trusted. A girl who is all about opportunity and doesn't care who gets hurt. Her feelings are never real and turned on and off based on "what's in it for her". As a friend, you can never confide in them, because if it suits them, they will betray you without a second thought. As a girlfriend, well let's say, you are in for an emotional roller coaster and she at the controls. But it won't be long before she finds what she thinks is a better ride and you will be conveniently shelved, to fuck with later. Dont bring her around any of your successful friends unless you are trying to get rid of her.
"Wow, I just saw your boyfriend with Sarah, I thought she was your best friend? What a trifling bitch!"
Trifling is to be sneaky, shady, snoopy, and out of pocket. Your utrustworthy, shallow, and your behavior is always suspicious. You can be found hiding in closets, outsides of closed doors and in your best friends boyfriends bed. You are unimportant, ghetto, and slutty. You will lie, deny and pry! Your favorite animal is the Serpent, because you admire him.
"I found that trifling bitch in my boyfriends house rifling through his shit, and she tells me she was just there waiting for me!"
It is what is done preceding a theft or break - in. The act of casing out a particular place for a robbery. Sneaking around where you are not supposed to be, usually done at night in the shadows or darkness where you can not be seen.
Those boys are up to no good. They are out low crawling the neighborhood.