Comparing someone or something to Hitler during a political debate in an obvious attempt at villification of the opposing argument, position or person. It is essentially a way of the Hitlerizer declaring they wish to cease intelligent discussion and begin name-calling.
Since nobody over the age of 5 takes you seriously when you call someone else a "poopy head", and Hitler is widely accepted as the embodiment of pure evil, adults can sometimes be found Hitlerizing their opponent's argument because, deep down, they feel their opponent is a poopy head and need some other way of expressing that to avoid being laughed at.
In the Healthcare debate, for example, both supporters and opponents have begun Hitlerizing the other side.
The verb to hate on; whether it be on a person, animal, object, or idea. To be a complete hater. The hater doesn't necessarily hate the person he or she is bashing, rather the hater wants to knock somelse down a notch.
Cindy was hatering on Tommyall day.
Patrick was hatering on his Xbox because his live account ran out.
Bill: The Gophers suck!
Tom: Stop hatering on Tubby's Team!