What does BS mean in the sentence "We call BS"?
I saw an article about protests in the US that said the following (see here the video):
Florida student Emma Gonzalez to lawmakers and gun advocates: 'We call BS'
I've checked Cambridge dictionary and I found that BS is an abbreviation of "bullshit". Then, now it's absolutely not understood to me what "we call bullshit" means.
Best Answer
The expression is used to call out (= to draw attention of others upon) a lie or a negligent or deceitful mistake.
As you have found already, BS stands for bullshit, a profanity that basically means "nonsense".
The verb "to call" can mean "to cry out", and it is often used when someone says something short in order to stop everybody else from going further. For example, a refree can call "foul" when playing some sport.
Therefore, "I call BS" means "You are lying/wrong, and I'm telling everyone".