buail faoi, v.t. & i. 1. Strike against. Bualadh faoi bhalla, to hit against a wall. Bhuail siad faoi chéile, they ran into each other. An rud is measa dár bhuail faoi, the worst thing that happened him. 2. Set about. Bualadh faoi rud a dhéanamh, to set about doing sth. Bualadh faoin saol, to set about (the responsibilities of) life; to go out into the world. 3. Cast down, under. ~ fút é, (of thing) put it under you; (of person, in wrestling, etc.) put him down, throw him. ~ fút ar an stól, set yourself down on the stool. Bhuail sé a cheann faoi, he hung down his head.