Dictionary Entry

Sea agus an an fear a bheadh ag giobach ó thaobh iúmar de a bheadh i gceist ansin go mbeadh drochghiúmar air nó go mbeadh sé tobann nó nó géar ina chuid cainte.

Yes, and the man who would be irritable in terms of temper would be meant there, that he would be in a bad mood or that he would be sudden or sharp in his speech.