guttocks (English) comes from English gut, from Middle English gut, from Old English gutt, from Proto-Germanic gut-, from Proto-Indo-European ǵʰewd-, from Proto-Indo-European ǵʰew- — to pour.
guttocks (English): A front bum or FUPA
Definitions
A front bum or FUPA
Ancestry of “guttocks”, step by step
guttocks traces back through two separate lines of ancestry.