be full of bull

be full of bull

slang To often say far-fetched, nonsensical, erroneous, or ignorant things. "Bull" is a shortening of "bullshit." Ah, don't listen to him, he's full of bull. My dad is so full of bull, it's embarrassing to listen to him talk to other people sometimes.

See also: bull, full, of

Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.