The Internet has many sites using the word "jugular" in senses quite remote from the
dictionary definition. I could not understand the discussion. See if you can
Here is one sample:

When the D gets a turnover and the they knows to 'fast break' , this is
conceptual. DoG's call for this is jugular, which told the players on the
field the following things: the other team is bummin' because of the
turnover, the other team has a weak D in since this was their O originally,
your own team is weak on O so score fast, scoring fast will break the other
team's heart.

http://www.umich.edu/~ultimate/Learning/concept1.html