1
general::
Phrase(s): full of hot air [and] full of beans; full of bull; full of it; full of prunes
Fig. full of nonsense; talking nonsense. • Oh, shut up, Mary. You’re full of hot air. • Don’t pay any attention to Bill. He’s full of beans. • My English professor is full of bull. • You’re full of it.
McGrawhill's American Idioms And Phrasal Verbs