juggler, jugular

Juggler or juggler means the person who can keep three balls or objects in the air by throwing and catching them, literally or figuratively--
I wonder how long it took the juggler to learn to do that.
The children are enjoying watching the juggler.
I don't know how she manages to juggle all of her commitments.

Jugular or jugular means having to do with the neck, in general, but more commonly jugular means one of the veins that goes from the brain down the side of the neck--
The cut bled so badly; he was sure that the jugular vein was severed.
Jugular may also be used figuratively, to mean an exposed or vital part--
He was very aggressive when in an argument, and always went for the jugular.

Now that you know that, you can say--
"The juggler was throwing knives in the air, when one of them slipped and cut his jugular."

Note--"juggle" is a verb ( action word ), with first, second, and third person forms, past and present--
I juggle, you juggle, he juggles, we are all juggling.
Yesterday we juggled.
"Juggler" is a noun ( thing or idea ), with a singular and a plural form--
Look there is a juggler! Now there are two jugglers.
"Jugglery" is what jugglers do--
He practiced jugglery for years to be able to do that.
Note # 2--"jugulate"  means to attempt to cure a disease by any means available, even potentially destructive or harmful ones--
The doctor isn't willing to jugulate this; he thinks it's too risky.
"Jugulate" also means to kill by cutting the throat--
Some people believe the only way to kill animals meant to be eaten is to jugulate them.