southern style biscuit
n. the act of taking a shit in your lovers mouth while masturbating. your lover then pinches your left buttcheek to signify he/she has a mouth full of feces. one then positions themself properly to ejaculate on top of the feces giving the appearance of syrup. then, as an option, you may or may not make out with your lover and consume the mixture.
Christopher loved his boyfriend so much that he did a complete southern style biscuit with him.