a friend whom you have very little in common with and you act on your best-behavior when you're with. A best-behavior friend does not typically know the extent of your true character or transgressions because you misrepresent the truth to make yourself look good or innocent
3
a sweet innocent baby n
4
n a sweet innocent baby n an angel of the second order whose gift is knowledge
5
a sweet innocent mild-mannered person (especially a child)