Someone who is very animated but in a stinky , foul impressive way , like your mom’s overweight friend who wears too much perfume and holds her arms out to hug you in a way that makes you cringe, smegnanamous is the stank that stunk, even when there is no odor at all.
from the Latin "shagus" (to fuck) + "animus" (spirit): 1. showing or suggesting a horny and flirtatious spirit; 2. to agreeably present the possibility of sex.