be full of bull(redirected from being 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.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.