big on

big on (something)

Very interested or invested in something. My sister loves going to clubs because she's really big on dancing. My family is big on education, so I know I'm going to college next year.

See also: big, on

big on

Enthusiastic about, as in Dad is big on Christmas with the whole family. [Slang; mid-1800s]

See also: big, on

big on

Enthusiastic about; partial to: "a patriotic youth organization big on military-style marching drills" (Earl Swift).

See also: big, on