ˈgrü(ˌ)grü noun
( -s )
Etymology: American Spanish (Puerto Rico) grugrú, of Cariban origin; akin to Yao grugru, literally, basket made of grugru
1. also grugru palm or gri-gri ˈgrē(ˌ)grē : any of several tropical American spiny palms (as the West Indian Acrocomia aculeata and the Brazilian A. sclerocarpa )
2. or grugru grub also grugru worm : a large edible grub that is the larva of certain tropical American weevils (genus Rhyncophorus ) and that develops in and feeds on the pith of coconut and other palm trees and sometimes sugarcane