What's the meaning of "he will roll on you"?

Question

and write an example

Answer 1

its a slang way of saying the person is not trust worthy and if pressured will tell private information or will turn against you

Answer 2

"If you give Barney the Snitch have a chance, he will roll on you. You get to do a dime of hard time, while he gets a suspended at a country club."

"He will roll on you" means that he will turn against you, give evidence of your culpability in the crime for a reduced sentence, while you get major incarceration time

Answer 3

It's meaningless nonsense to me, unless you take it literally: he WILL roll on YOU if he doesn't sit down on the bus when it takes  the next bend!!!

Answer 4

if given the chance will stab you in the back.

watch out, if you get him mad at you, he will roll on you.

Answer 5

Roll on means snitch " he ended up in jail, cuz his close friend has rolled on him"