Euphemism for "Asshole", observationally derived both from them the holes in Swiss Cheese (see also "Swizz chessed up") and from "swizzle stick", a useless throwaway itemsused to stir drinks, mix glue, or pick noses. Can be contracted to "swizz". A swizzole that is engaged actively practising the art of being themselves can also be described as a "swizzard". Adjectivally, can be used as "swizzant" Compare with the Romany "chev", also meaning "asshole"
"Fuck you, swizz!!"
"Look at that kacker over there. What a fucking swizzard!"
"You open your mouth again, and I'll shove this right up your swizz!"
"Don't be so swizzant high and mighty with me, fuck face"