What is hooking up?

Hooking up is when a people kiss but in a different way that you should know from you parents. I know it is very graphic but you wanted to know... And chalking is when a person is talking and they say a letter that has a word to open their mouth (example: wow), you attack then by hooking up with them. Hooking up is when a people kiss but in a different way that you should know from you parents. I know it is very graphic but you wanted to know... And chalking is when a person is talking and they say a letter that has a word to open their mouth (example: wow), you attack then by hooking up with them.