n. the misconception while under the influence of alcohol that one can engage in physical exercises that demonstrate strength, balance, body control, or artistic dexterity.
"she nearly broke her neck attempting some drunknastics at the party last night."
Drinktastic can be used when you want to go want to go drinking. Or you want to be named something other than an alcoholic. It's mainly used when supertastic people get supertastic wasted for fun or from stress!
I'm going to go and get drinktastic tonight! I'm not an alcoholic, I'm drinktastic!