A wuss, Pansy or Pussy.
When your nut sack puckers up so badly from fear that it gets sucked back up into your body.
AKA, no balls.
Pucker Nut is used when subject only has one testicle.
Friends, "Hey Ted, Take that there spoon and mason jar and get us some honey from that African bee hive."
Ted says, "Fuck that shit. That's suicide!!"
Friends, "Come on Pucker Nuts, I want fucking honey for my lemon tea right now!"