It's a coco the clown type of skin
A coco clown skin for the thug model.
Just extract all files to your kingpin/main/models/actors/thug folder and they will be placed in the correct locations.
Easiest way to select this skin is to:-
Pull down the console (tilde key ~)
Type in :-
skin "male_thug/coc coc coc"
Otherwise you can go to the Gangbang "Player Setup" menu and the new skins will be located there under the male_thug model.