A superlative meaning the 'very best' combining butter very smooth, nice, agreeable and luscious - appealling.
It can used to describe desirable women or powder snow.
It snowed 2 feet of butterluscious powder last night!
What an awesome day, the snow was butterluscious.
Check out that hot chick over there, she is butterluscious
The act of creepily talking to woman, children, and dogs an adultmale should not be talking to and offer candy to. Can also be used for someone who is aggressively and forcefully over friendly to the point of discomfort.