Currently, BASTARD #8334 has the neck trait: THICC. However, it appears to have a regular neck trait with only 5 pixels across the neck width. It seems that the two distortion pixels on the left side of the neck got counted as neck pixels but should not be.
https://opensea.io/assets/ethereum/0x31385d3520bced94f77aae104b406994d8f2168c/8334
The trait constitution for thicc neck reads : “Necks that are more thicc than traditional necks.”
Traditional necks are 5 pixels wide:
Thicc necks would then be 6 pixels or wider.
Examples of the other THICC necks are here: https://opensea.io/collection/bastard-gan-punks-v2?search[sortAscending]=true&search[sortBy]=PRICE&search[stringTraits][0][name]=NECK&search[stringTraits][0][values][0]=THICC%20NECK
Thank you Bastards!