to be having a nite like charlie sheen would i.e. coke, hookers, weed, & a good scaring of the ladies!
man, i cant wait to go to vegas & just go sheentastic.... dont tell my wife!
by pbrwonerkid March 05, 2011
1 more definition
This is when someone is a hot-mess but you don't want them to change b/c you're afraid they will be less entertaining
She is so Sheen-tastic, that I have to invite her to all the parties.
by khawesome March 03, 2011