whēkau
1. (noun) internal organs, intestine, bowels, entrails, guts.
(Te Pihinga Textbook (Ed. 2): 155-156;)
Nō te tapatapahanga a ngā tākuta i tōna tinana, ka kitea te mahi a te pine, a te nēra e tītiti ana i roto i ōna whēkau me ētahi mea atu hoki i horomia e ia (TP 10/1906:9). / When the doctors cut open his body they found lots of pins and nails sticking into his intestine along with other things he had swallowed.