Inspired by the movie knocked up with their smishsmortion clinic and a long night of drinking. Its the level of drunk past being hammered but before being totaly wasted. Originates from the Le Cordon Bleu, Las Vegas.
Guy One: Last night I was so smishmammered that I slept with my ex.
Guy Two: Dude she is a hoe fo sho.
It it used to some up the feelings of when you have met someone online and have yet to meet them in person. Where you are either in love/lust/flattered, eager to meet them - all from only online interaction