Cullis

[Sarah]

A strong broth of meat, strained and made clear for invalids;also, a savory jelly. [Obs.]When I am exellent at caudles And cullises . . . you shall be welcometo me. Beau.

[Sarah]

A 'cullis' is someone who is generally considered to be cool - often the 'top dog' of a social group, and someone who is popular and well-liked by all.
Importantly they are modest and believe in being kind and nice to everyone, and aren't overly arrogant.
A term mainly used in South England at the moment