LAHF
Laugh At His/Her Failure is when you cackle like a hyena because someone’s failure is so bad it makes your pants fall down.
My math test score was a 17. LAHF at me like I failed life.
She tripped over her own feet and fell into a puddle. LAHF like it was the end of the world.
He tried to rap and it sounded like a cat was choking on a sock. LAHF like you heard the worst scream ever.