A Sniggy Pig is one who means a lot to another. It is almost exclusively used in an affectionate context but can be incorporated into everyday language also. Similar to other terms of affection, it is assumed one will only have one 'Sniggy Pig' at a time.
When a sexual or mind altering challenge taken is beyond a breeze where pleasuring rewards are already given before commencement.
I found that lose moose sheila at the club and easily scored; manipulated her the entire night like it was all shiggiwiggi. And then driving drunk home was all shiggywiggy.