Rock Solid

Someone who's unreliable in every aspect and flimsy with their promises

"You know what? Whatever, all right. What the...
Whatever. I don't give a shit."

"Yeah, well, I'm still going. Are you going to come?"

"I'll pick you up still, but... I mean
The party's gonna be over by the time I get over there."

"Whatever. You know, it doesn't really matter right now because
You are rock solid."

- Dance Gavin Dance Rock Solid