A man or woman who tells you
too much about themselves on your
first meeting such that it feels
like they are ejaculating information all over you.
"Man
that guy Rob wouldn't stop talking about himself last
night at the
party. He was really jizzy"
Friend 1: "How was your date last night?"
Friend 2: "Well he was trying to put the moves on me by telling EVERYTHING about himself. It was really jizzy"