I have my definition, but I don't think it means what I think it means anymore.
When I say I have made out with someone, it usually involves some heavy petting, possible partial nudity and that groping that occurs when things are not going to go into full blown sex but are filled with promises of times to come.
Any achieving of orgasm pushes it into the sex category.
Now, I am seeing the term used to mean sex. Almost synonymous with "hooking up".
Am kinda confused now.