This is when a man or a woman is blacked out drunk and is taken home to have sex with a casual encounter from the bar. The Jasinskier then proceeds to have sex with unsuspecting individual. Finishes and falls asleep immediately upon personal, not mutual orgasm. During sleep the Jasinskier will piss the bed, wake up in the morning and leave without a trace, besides the pissy bed of course.
I took this really drunk guy home last night and totally got Jasinskied!