2014 October 27, Sam Leifer et al., “The Phallus”, in Plebs::
Cynthia: Please? Centurion: No, sorry. I can't do that. Cynthia:Pretty please? Centurion: What does that mean? Cynthia: Just... the same as "please", except I'm pretty. Centurion: Still no.
Translations
an emphatic interjection to make commands more polite