The word that really hot girl from Mean Girls was trying to make slang for cool, awesome, or good.

Adj. Variation and shortening of the word 'fetching'. Used to describe something cool and trendy. General usage by females, teeny-boppers. You can almost hear it replied with "Like, totally!" Coined by the movie 'Mean Girls'.

slang for cool or awsome. Used in mean girls by Grechen Weener.

a game that you play with your dog. Usually you throw something and it brings it back to you.

A replacement for cool. One thought to be coined by Tina Fey's "Mean Girls", it was actually developed in website www.giygas.net which show's by date that fetch was used before the movie had debuted. Sadly, now that is it has hit mainstream it, will die quickly.
The antonym is antifetch.

Gretchen Wieners used it in Mean Girls to describe something that was cool or awesome..Gretchen said it was "like slang from England"

Adjective that describes something 'cool', 'awesome', 'hot', or 'chic'. Used various times by Gretchen Weener in the 2004 movie Mean Girls