The term "Hom Attack" is a slang expression that refers to an unexpected or sudden physical assault, typically involving violence and aggression. Full definition
Second, ad hom attacks on people's hairstyle and more importantly on their religious beliefs have no place in our arguments about AGW. (wattsupwiththat.com)
However, if i said «Your theory sucks... and so do you», then that would be and ad hom attack and thus problematic (sbnation.com)
I think you are right that not just this movie but the generalized stridency, desire to censor, and ad hom attacks are doing great harm to the alarmists» cause. (judithcurry.com)