Abbuttareglio (m)
(with) definite article: il: l’tube through which the bag of a mouth-blown bagpipe, &c. is inflated
Indubitably related to "abbottarsi" [to get stuffed]; Central Latium.
Sometimes made of a goat’s horn, more often from wood (elder (Sambucus nigra), olive (Olea europæa), &c.) or cane (Arundo donax).
Sparagna, Ambrogio: Zampogne, presepi e musica paraliturgica nel Lazio meridionale. In: La zampogna: gli aerofoni a sacco in Italia (2005), I, p.103, 104*.