broccoli UK /ˈbɹɒk.ə.li/US /ˈbɹɑ.kə.li/ noun2 •A plant, Brassica oleracea var. italica, of the cabbage family, Brassicaceae; especially, the tree-shaped flower and stalk that are eaten as a vegetable.You can also get oriental broccolis such as kailaan and nabana, which are easy to grow and really tasty. — 2010 •(US, slang) Marijuana.I be smokin' broccoli, mama told me eat my veggies — 2014 formsbroccolis