Hot and nerdy best friend of the main character, Scott Mcall, in the TV show "Teen Wolf". Hilariously sarcastic and one of the best characters on the show. (PLAYED BY DYLAN O'BRIEN)
Scott: "Stiles... if you have it, we'll do something. I'll do something."
Adjective used to describe an activity that is a complete waste of time and energy. Typically refers to long reports or other school related activities.
Example 1:
Guy 1: Did you go to baseball practice last night?
Guy 2: Hell no, practice is siliskit.
Example 2: I don't want to do this siliskit report on Beowulf.