ettendo.

make a crackling sound; go off (of a gun); burst, explode; thunder; ache (of bones); speak harshly, make an outburst, okubwatuka kw'engalo, a burst of applause.

etc.; cause pain (of an internal physical nature); break; beat. Omutwe gumbwatula. I have a splitting headache, okubwatula engalo, to applaud, break out into applause, okubwatula emiggo, to beat severely (with sticks/canes). cf. -bwatufu, kibwatukira.