A highly sarcastic term for machismo - implying that the person is so pathetic, they can only intimidatepeople online. Internet toughness is the opposite of actual toughness.
mental toughness is getting denied by 15 girls you try your hardest to hang out with and having what it takes to consider what went wrong, make the necessary adjustments, and treat number 16 like she's a princess.
It took serious mental toughness for RJ to put failureout of his mind; to do what he could to make himself happy despite unfavorable odds.