ほざくto say, to spatter, to prate, to prattle, to babble, to grumble, to murmur, to brawl

上司(じょうし)：「お前(まえ)はまだ新人(しんじん)だ。勝手(かって)な事(こと)をほざくな！」

Boss: "You're still a newbie. Don't prattle on about whatever you please!" {to say, to spatter, to prate, to prattle, to babble, to grumble, to murmur, to brawl}

妻(つま)が夫(おっと)に：「不倫(ふりん)をしたお前(まえ)なんかが何(なに)をほざくか…。」

The wife said to her husband: "You, who had an affair, what are you babbling about..." {to say, to spatter, to prate, to prattle, to babble, to grumble, to murmur, to brawl}

ミスをしてばかりの社員(しゃいん)が「俺(おれ)は仕事(しごと)が出来(でき)る」とほざいている。

The employee who keeps making mistakes is babbling, "I can do the job." {to say, to spatter, to prate, to prattle, to babble, to grumble, to murmur, to brawl}

上司(じょうし)：「コラ！寝(ね)ぼけたことをほざいていたらしばくぞ！ちゃんと働(はたら)け！」

Boss: "Hey! If you keep babbling nonsense, I'll smack you! Get to work properly!" {to say, to spatter, to prate, to prattle, to babble, to grumble, to murmur, to brawl}

先生(せんせい)：「おい、そこの生徒(せいと)たち！何(なに)をほざいているんだ？今(いま)は授業(じゅぎょう)中(ちゅう)なんだぞ！」

Teacher: "Hey, you students over there! What are you babbling about? We're in the middle of a lesson right now!" {to say, to spatter, to prate, to prattle, to babble, to grumble, to murmur, to brawl}