A crazy mixture of things, colloquial or informal for a disaster.
'Well, that was a bit of a mish mash.'
Finger blasting an unfamiliar female while standing in an erect, upright and vertical position, most commonly executed in a non-private setting with nefarious intent. Also, usually administered while said female remains fully clothed. This move is effective on all women, as no victim has ever been unsatisfied.
1.) Commish got mish-faced at the club last night and struck again. He met some nuss, does-ed work, undid her buttonfly, and gave her the ole mish mash on the dance floor.
2.) I was walking down the street last night and I saw Mish Mash giving some nuss the ole mish-mash in an alcove on the corner. Mish is wise beyond his years, I could never pull that off!