look up any word, like donkey punch:
 
1.
1)To toss ideas around with no expectation of them coming
to pass, to brainstorm.
2) To make harmless jibes or attacks; make weak accusations.
1)We were spitballing about the upcoming election.
2)I was just spitballing him, but he took it seriously.
by jawm October 23, 2005
 
2.
To make a suggestion loosely, often one that goes against common logic.
"Now I'm just spitballing here, but why don't we pay off our loan in Canadian dollars and save ourselves soem money?"
by Rogultgot August 15, 2005
 
3.
v. - to shoot ideas out in the open, may cause yourself to seem like a complete dunce.
Kai was spit balling about the new iPhone, while David, in turn, shot them down.
by XeroCint March 02, 2009