Answer:
With pointed fangs I sit and wait; with piercing force I crunch out fate; grabbing victims, proclaiming might; physically joining with a single bite. What am I?
If you have me, you want to share me. Once you share me, you won't have me. What am I?
I begin and have no end and I end all that begins. What am I?
I grow up while growing down
Late afternoons I often bathe. I'll soak in water piping hot. My essence goes through. My see through clothes. Used up am I - I've gone to pot.
I flow from the Homerβs mouth when he sees doughnuts.