When you criticism someone in a way that isn't serious, you're being sarcastic. Especially when you make it really obvious to the person that you're just having some fun and don't mean what you say. Online, often emphasised with silly smilies and such!

Someone who you love and don't want their feeling to be hurt by calling them a name because they are very insecure but have no reason to be you call them a silly seal

The act of supplying alcohol for a party of people with out getting anything in return.

the best people in the world and or universe
also meaning the most fabulous

A silly shark is when you are soooo funny you get blood thirsty and eat human

Si•lly•si•enn•a- a nickname for a silly girl that’s named sienna. (especially when it’s sienna lewis)