la manuela
La manuela; masturbating, jerking off, playing with one's self.
Te haces la manuela por las noches?
La Manuela
Latin American slang in Spanish. "Manuela" is the name of someone's "girlfriend," who turns out to just be their hand. Used as an insult or as a self-roast, to denote loneliness.
"Yesterday I got laid."
"Oh yeah, by who, la Manuela?"
"Oh yeah, by who, la Manuela?"