"belly," 1943, American English slang, probably from dialectal pronunciation of Italian la pancia "the belly," from Latin pantex (genitive panticis) "belly" (see paunch).
Slang definitions & phrases for labonza
labonza
noun
The belly; gut, kishkes: She let him have it right in the labonza
[1950s+; probably fr Italian pancia, ''paunch,'' with attached article and dialectal pronunciation]