creative way of saying "sup", which is abbreviation for "what's up", which means "what is up?" Which is asking a person what somebody is up to or doing.
It's better than simply asking what's up, purely because soup is fucking awesome.
adj, vb
1 a: sound produce by cupping the index through rim fingers, inserting them into the vagina and waving in a reverse "u" motion
2 a: to complete an action b: to retrieve an item
ex: 1. I fingered her dude and it was like, "soup".
2. John souped the test or Larry, could you soup Bob the remote?