How do you ask a guy for something "casual?"

I second the motion; this guy is not interested in hanging out..I mean, believe me, guys would do what it takes to get themselves in a position to hang out with a female, specially if both of you made out in the past; let's say that I was the guy that you made out with, and you were to call me, and I was working all weekend, as soon as I get your call, I would think "hell yea, that girl loves to make out', so my response to you would be, 'even though I'm working all weekend, maybe we can hang out another time..." Oh yea, and that's not to say that in the past, I've done all nighters and gone to work the next day like a zombie.....so yea, believe me, he ain't interested. IF you want to flirt, then call him back and say, listen, what about we meet and make out again!

He's clearly not interested. Don't waste your time. If you where on his mind he would have called or ask you himself to hang out.

The only thing I can suggest is the next time you call or text have a definite plan.

If it is hanging out you want to do then invite him to go with you and friend or just yourself and have specific plans. If he declines move on.

Just hanging out is being casual as long as you don't mention the "commitment" subject...as long as you guys don't talk about that it'll always be considered casual. Just ask him to hang out and if you continue to not hear from him..then he's probably just not interested in being around you at all.