jug ‧ u ‧ lar /ˈdʒʌɡjələ, ˈdʒʌɡjʊlə $ -ər/ BrE AmE noun [countable usually singular]
[ Date: 1500-1600 ; Language: Late Latin ; Origin: jugularis , from Latin jugulum 'throat' ]
1 . jugular vein the large ↑ vein in your neck that takes blood from your head back to your heart
2 . go for the jugular informal to criticize or attack someone very strongly, especially in order to harm them