m going to call my friend a braggart.
Is he doing a lot of bragging?
Everybody at the party knows he's talking bullshit, but no one has the guts to call him on it.
You shouldn't ridicule someone in front of other people, as it just causes shame and guilt. You should try to talk to your friend and let them know how you feel about their behavior.
That man is full of himself.
You can talk in private but saying that in front of everyone will make your friendship worse for both of you.