I think it looks cheap. I was on an escalator recently, behind a really skinny girl in cut off shorts. As the stairs began to climb her butt came level with my eyes... I could have stuck a finger in her. I could see her cootch with this thin strip of denim pretending to cover her... it was really gross. The girl was dressed quite smartly other than that, you could see wasn't a hooker... but seriously... gross.
If you want to look like you're selling your ass then it's probably a good look.
"It's trashy and disrespectful" Cuz I don't walk around with my pants sagging off my ass with a big ass T-shirt on. So I expect my girl to be the same. Ya know "normal casual wear" or something that makes you say "DAMN she looks sexy" while leaving something to the imagination ^_^.
Now don't get me wrong if a girl wants to "floss" her body cool by me. But I wouldn't dare take a girl who dresses like that seriously #LTR wise.
In my opinion, it's trashy and distasteful. That's why they don't allow shorts at my school to be shorter than fingertip length, because girls would be doing it to try to "impress" guys. It's not cute, it looks like you're wearing shorts to small for you, sorry.