Its the sound of me taking a dump on Britney's face.
ahhh, so you're into scat...kinky
y'll crack me up.
Her wuffle is sick
I'd eat her wuffle with syrup, i'd eat the shit outta her arse too.
Since it was Whedon's choice to put it in, and Whedon is etapamichlly NOT one of the people embracing the myths over the comics, this comes across as an excuse to give Whedon a free pass. Is mythological Loki misogynist? Definitely. Is Marvel Movie Loki misogynist? Not notably until right that moment. And that was Whedon's choice. He's already shown before that line how evil Loki is, the line doesn't actually serve to underline that any further, especially when most of the audience missed the meaning. It's Whedon thinking it's funny to slip in a grossly misogynist slur.