be big on (something)(redirected from they have not been big on it)
be big on (something)
To be very interested in something or hold something in very high esteem. My family is really big on education, so I know I'll be going to college next year. My friends love going to clubs, but I'm not too big on dancing.
Farlex Dictionary of Idioms. © 2022 Farlex, Inc, all rights reserved.