To get slapped with a dude's dick forcefully; According to Donald Trump it means getting beat badly, without any sexual subtext at all.
Donald Trump: Hillary Clinton definitely got schlonged by Barack Obama in 2008.
Reporter: Uhh.... are you sure? Cuz' that's gross.
Trump: What do you mean?
By Grete
Schlonged
to get very drunk to hit someone or thing
to bismark a someone
i got absolutley schlonged last night.
i schlonged that ball a mile i schlonged that women last night right in the face