'Dog's' in the Bible

What Ish-bosheth said made Abner furious, so he replied, "A dog's head for Judah is that what I am? Up until today I've kept on showing loyalty to your father Saul's dynasty, to his relatives and friends, and I haven't turned you over to David, but you're charging me today with moral guilt regarding this woman!

"Whoever slaughters an ox is just like one who kills a human being; whoever sacrifices a lamb is just like one who breaks a dog's neck; whoever makes a grain offering is just like one who offers pig's blood; and whoever makes a memorial offering of frankincense is just like one who blesses an idol. Yes, these have chosen their own ways, and they take delight in their contaminated actions.