Verbnoun is the combo of a verb and a noun to allow for less talking and more thinking. This practice is often used by those who don't have time for hoohah, gossip, and jibberjabber.
man1: Yo man, I'm gonna go to the store do you need me to get anything for you?
can be simplified to
man1: Yo man, I'm storin, you needin?
with the use of verbnouns.