"chicken dick" is the original . no idea where "donkey dick" came from. Makes not much sense.
But yes, you should use it, unless unhooked is your style.
With the "dick" in place, your "chicken loop" will not fall out of your hook.
Get it? Chicken loop-chicken dick !
Nobody calls it a donkey loop!
Who started the donkey thing anyway?
What is a "chicken dick"?
the little piece of tubing on the loop