talk out of one's ass

Speak without knowledge

To talk out of one's ass is to speak without knowledge or authority on a subject, making claims that are baseless or fabricated.

The expression is vulgar and dismissive, suggesting the speaker is producing worthless noise rather than informed speech.

He's just talking out of his ass—he's never even read the report.

Someone accused of this is being called ignorant, dishonest, or both.

Related

make it up · spout · embarrassment · arrogance · assumption · pontificate · babble · overconfidence · hot air · ridicule · superficiality · disbelief · rant · run one's mouth · speak out of turn · skepticism · bias · bluster

Opposites
epistemic grounding

talk out of one's asstalk sense

Communicate rationally

know one's stuff · speak the truth · do one's homework · tell it like it is

intellectual honesty

talk out of one's asstell the truth

Communicate facts honestly

credibility and authority

talk out of one's assknow one's stuff

Have thorough expertise

Family

talk, talks, talked, talking, talker, talkers, talkative

Familiarity
Top 500,000
Profile
Used worldwide · Timeless · Abstract · Negative · Everyday, not technical · Rated PG-13