1. When your
testicles come in contact with a vagina. This is
almost always achieved when the the male penetrates the females vagina as deeply as he can, so that his scrotum comes in contact with the vagina.
This can also be known as going "balls deep".
2. An insult to a male. See
chickenshit.
1.1) "Ugh, I really should go shower. I've had pussballs for three days now."
1.2) "Hey there, pussballs!
Have a good time
last night?"
2.1) "Hey pussballs, I heard you backed out from the fight
with that 9th grader!"
2.2) "I dare you to do it, pussballs!"