Opinion bashing

A strange internet neologism of unknown origin. It can be interpreted as "insulting or not respecting someone's opinion", especially when it comes to a piece of children's media. Pretty popular with Goanimate and Deviantart people.

User1: You should not bash my opinion on Shrek 2! Opinion bashing is wrong and you should learn how to handle opinions!
User2: What the fuck are you talking about?

biassed opinion

A non-open-minded personal belief regarding --- or greatly affected by --- da size, shape, and/or overall appearance of someone's behind.

In da "Golden Girls" episode "My Brother, My Father", Uncle Angelo admits to having had a biassed opinion ("I'm a butt man") of da ravishingly-lovely waitress wif a cute rounded bum whom he'd met as a young man and eventually married.