What is Pendant?
1.
Pendant, n.
One who, by correcting others, gives himself (or herself) just enough rope by which to hang.
Bill: "That bloke's a total pendant."
Ben: "I think you mean 'pedant,' mate."
Bill: "I know you believe you understand what you think I said, but I'm not sure you realize that what you heard is not what I meant. BTW, is this noose too tight?"
See