From south park, a trans-species being that was once a Jew and had reconstructive surgery to make him (or her) a dolphin. Sometimes referred to as a lawphin.
Kyle's dad became a jewphin after surgery because he always wanted to be a dolphin.
A jewpoint is reached when a Jew runs out of money and becomes exceedingly greedier, angry, sweaty and rude - that is a jewpoint. Caution must be taken when you're around a Jew who reached their jewpoint.
My God did you see Esther that day? She was full on angry, rude and bitch. What was up?
She reached her jewpoint. Probably was out of money and was pissed about it. That's what happens when you reach your jewpoint.