1. To cup ones hand under the anus whilst excreting waste matter to make a shape, sculpture, tool, dildo, etc.
2. The act of curling your hand under someone else's anus to collect their waste matter for the use of the user's own discretion.
3. Using your hand to curl pubic hair.
John: I need to go to the bathroom.
David: Let me come with you, I need to hand curl some new insulation.

Lisa: Oh my, what are you doing with your pubic hair!
Patricia: I'm handcurling, leave me alone!
by Osiris Squad July 13, 2008
Get the Handcurling mug.