Sweet Grass
A "sweet grass" is when someone very slyly or indirectly snitches on someone.
"Who drank my Coke out of the fridge?"
A grass would say "I seen Mark take it"
A sweet grass would say "not me, why don't you ask Mark?"
"Was my boyfriend with you last night?"
A grass would say: "no, he was cheating on you with some girl he met at the pub"
A sweet grass would say: "no, he said he was going back to his girlfriend's house, I assumed he meant you, obviously not"
A grass would say "I seen Mark take it"
A sweet grass would say "not me, why don't you ask Mark?"
"Was my boyfriend with you last night?"
A grass would say: "no, he was cheating on you with some girl he met at the pub"
A sweet grass would say: "no, he said he was going back to his girlfriend's house, I assumed he meant you, obviously not"