English: (interj bpui atan) expression used when spitting in disdain or anger
Source: Peter Martin's Kelabit Dictionary
atan 1: shelf or rack, made of rattan, used for storing plates, etc.
atang: crossbeam in house construction
batang: log, tree trunk
kelatang: edible grub or butterfly found in hollowed-out tree
natang (n-atang): to be carried
ngatang (ng-atang): to carry something on a pole between two people
pengatang: something used to `ngatang' something
ratan: leaking, as a roof or bucket