-Smish Smosh(ed)- Synonym(s) for drunk, high, wasted, or smashed, this term/phrase is typically used by prissy girls such as cheerleaders or sorority members. Often preceded by the word totally or so. To do in excess.
I got totally smish smoshed at the ditch party yesterday.
or
Put that drink down, you lookin all smish smoshed.
Meaning a delirious state of intoxicated happiness. A euphoric version of "smashed". Popularised in the French Alps, and holds great connections with Après-ski (the act of getting "smished" after a hard day's skiing).
Best pronounced using an Australian accent.
Let's smish things up
I was beyond smished last night I'm smished, and you're beautiful