Most importantly, one should never let the grip ride high in the palm, so that it is directly over, or inside (above) the hypothenar eminence (along the lifeline palmar crease). One should remember that the left hand golf grip is primarily a three-finger grip, and not a palm grip.
impudence - the trait of being rude and impertinent; inclined to take liberties. cheekiness, insolence, impertinence, crust, freshness, gall. rudeness, discourtesy - a manner that is rude and insulting. chutzpa, chutzpah, hutzpah - (Yiddish) unbelievable gall; insolence; audacity.
The definition of vain is  someone or something without value, without force or who is conceited. An example of vain is a promise that someone doesn't intend to keep. An example of vain is an attempt to prune a bush only to have it removed the following day. An example of vain is a person who constantly talks about how good looking they are.