One that possesses identic odiferous qualities when producing dung, flatulence &/or sharting as oneself, often referred to as a poop plagiarist.
"Walcott, you dirty dumpelganger, what hast thou eaten!?! You smell as though you've been raiding my refrigerator! Just yesterday I cleared the lobby at the country club with that famous sent & now you have cleared my sinuses with your own!
this is done by digging your finger into your favourite dimple on your significant others left cheek then diving forward licking deep into that dimple in a way that you hope seems implausible and not like you’ve spent an embarrassing amount of time daydreaming of it.