sloppy kisser Share definition Flag 1. Noun- a person who kisses using excess saliva and predominant use of tongue outside of mouth Dear diary, she's a sloppy kisser, had to wipe my mouth off with my sleeves several times, but I'm still fallen for her. sloppy kisser by your.mojo.on.drugs July 8, 2009 0 0 Get merch Get the sloppy kisser mug. Buy Now — $32.95 See more merch